Modern Gas and Electric Hot Water Systems
Hot Water Systems
Modern hot water systems have advanced significantly compared to their old-school counterparts. We often get requests for mains pressure cylinders to remedy low water pressure problems. Smart options, such as continuous flow hot water systems, are becoming increasingly popular for new homes due to their efficiency and compact nature. Moreover, modern electric units are highly reliable and powerful, provided they're correctly installed by a licensed professional like the experts at L B White.
Reliable, Efficient, and Trustworthy Hot Water Cylinders by L B White Plumbing:
Modern Hot Water Systems
Modern hot water systems have advanced significantly compared to their old-school counterparts. Smart options, such as continuous flow hot water systems, are becoming increasingly popular for new homes due to their efficiency and compact nature. Moreover, modern electric units are highly reliable and powerful, provided they're correctly installed by a licensed professional like the experts at L B White.
Hot Water Cylinder Failures
Hot water cylinders are designed to last for several decades. However, signs of wear and tear, such as low water pressure or a complete lack of hot water, can indicate potential issues. These problems could arise from a cylinder leak, rust, or an electrical fault. Our experienced team can quickly identify the issue and advise you on the best course of action, be it an immediate fix or a complete unit replacement.
Hot Water Cylinder Maintenance
Regular maintenance is key to ensuring the longevity of your hot water cylinder. At L B White, our comprehensive cylinder service ensures your equipment operates efficiently. Regular maintenance checks are significantly more cost-effective than emergency call-outs, protecting your investment in the long run.
Heat Pumps
A great alternative to traditional systems of heating. You can expect substantially less power than your conventional hot water unit. The Eco Plus and the Ambi Heat products are great examples of electric heating to save you money on the power bill in the long run.
DLM Wallace Lead Sheet / Acrylead
Product Description:
DLM Wallace Lead Sheet & Acrylead consist of virgin lead of at least 99.8% purity, machine cast in to sheet form of various dimension and thickness. Acrylead has a factory baked acrylic primer coating which inhibits the contact of water with the lead and its oxides, greatly reducing lead run-off which can cause staining on surrounding roof materials such as tiles. Lead Sheet & Acrylead are soft and malleable, making them a versatile flashing material. They offer strong resistance to corrosion and UV degradation, offering unparalleled longevity of service.
Scope of use:
Lead Sheet & Acrylead are used as a flexible weatherproof flashing to drain or deflect water back outside roof
and wall cladding systems. They are commonly used for flashing concrete, clay and slate tile roofs, for buildings described in Table 1 of NZS 3604:2011, and NASH Standard Part 2: May 2019- 1.3.1.
Relevant building code clauses
· B2 Durability – B2.3.1 (a)
· E2 External Moisture – E2.3.1. E2.3.2
· F2 Hazardous Building Materials – F2.3.1
Contribution to code compliance
B2 Durability – B2.3.1 (a)
When installed in accordance with DLM Wallace literature and NZBC E2/AS1, Lead Sheet & Acrylead will provide durability of no
less than 50 years. DLM Wallace manufactured Lead Sheet has an in-service history in New Zealand of over 100 years.
E2 External Moisture – E2.3.1. E2.3.2
When installed in accordance with DLM Wallace Literature and NZBC E2/AS1, Lead Sheet & Acrylead will contribute to satisfying
the these performance requirements on NZBC E2. DLM Wallace Lead Sheet & Acrylead (17kg/m2 grade and above) meet the requirements of NZBC E2/AS1 4.3.1. DLM Wallace Lead Sheet & Acrylead is manufactured in accordance with AS 1804:1976 (Soft Lead Sheet and Strip).
F2 Hazardous Building Materials – F2.3.1
Prior to working with DLM Wallace Lead Sheet & Acrylead, installers and handlers should familiarise themselves with the health and safety guidelines offered in the DLM Wallace Lead Sheet & Acrylead Material Safety Data Sheet.
Standards:
DLM Wallace Lead Sheet & Acrylead is manufactured in accordance with AS 1804:1976 (Soft Lead Sheet and Strip).
Composition:
DLM Wallace Lead Sheet & Acrylead consist of virgin lead of at least 99.8% purity, machine cast in to sheet form of various dimension and thickness. Acrylead has a factory baked acrylic primer applied to both sides of the sheet, which minimises run-off of lead oxides.
Limitations:
· Material compatibility must be considered when specifying and installing DLM Wallace Lead Sheet & Acrylead.
· Lead Sheet & Acrylead must not be used in contact with zinc-aluminium coated long-run steel or zinc- aluminium coated pressed metal tiles.
· Refer to NZBC E2 AS1, Table 21- Compatibility of materials on contact.
· Refer to NZBC E2 AS1, Table 22 – Compatibility of materials subject to run-off.
· Due to thermal expansion and contraction, individual pieces of Lead Sheet & Acrylead must not exceed the dimensions listed in the table below;
Maximum Size of Individual Pieces of Lead for All Flashing Applications
Installation Requirements:
flashings, lead slates, chimney flashings and weatherings to cornices, parapets, full roof cladding, sound proofing, radiation shielding
Dlm Wallace Lead Sheet & Acrylead Grades
Flashings Must Be a Minimum of 17KG/M2
demand extra length
- Lap cover between individual sheets/pieces must be a minimum of 100mm (Refer NZBC E2/AS1- 4.5.2 (f) )
- Parallel flashings must be dressed down in to the tile pan, and have a minimum cover of 150mm, with a minimum upstand of 100mm (75mm minimum upstand behind cladding). Refer NZBC E2/AS1- Figure 26.
- Transverse flashings must have a minimum cover of 150mm over the tile, and have a minimum upstand of 100mm (75mm minimum upstand behind cladding). Refer NZBC E2/AS1- Figure 26.
- Flashings should be designed so that while the lead is in position, free thermal movement is not restricted.
- Nails, screws and fixings should have a similar life expectancy, and thus should be copper, or stainless steel.
- When forming and shaping lead, caution must be taken to not over-stretch the lead, which can create thin areas with reduced integrity.
Maintenance Requirements:
To reduce the risk of run-off staining surrounding materials, a patination oil should be applied to un-painted lead sheet as soon as possible after fixing. Acrylead should be over painted with a quality acrylic external house paint and this coating should be maintained. As with all roofing material, Lead Sheet & Acrylead should be kept clean and free of moss, mould, lichen and debris.
Warning and Bans:
DLM Wallace Lead Sheet & Acrylead is not subject to warning or ban under section 26 of the Building Act 2004.
Types of Products
There are three distinct types of hot water cylinders, each offering different benefits. Understanding these systems will help you make an informed decision about the best option for your home or business.
Gas Hot Water Cylinders
These are typically smaller than their electric counterparts as they can heat water at a much faster rate. If you're looking for a compact yet highly efficient solution, gas hot water cylinders might be the perfect choice.
Electric Hot Water Cylinders
Electric systems heat the water inside a storage tank, operating much like a kettle. Available in various sizes, these are the most affordable options on the market. However, it's worth noting that they are generally less energy-efficient than other systems.
Gas Continuous Hot Water Systems
These systems heat water only when you turn the tap on, providing a continuous stream of hot water. This setup can offer a range of benefits, such as significant savings on your energy bill and reduced climate footprint. If you have a large household or are tight on space, a tankless system could be an ideal solution.
Recommended products
Mains Pressure
Designed and manufactured for over 30 years in New Zealand to meet New Zealand’s energy performance standards, Rheem mains pressure electric water heaters are top performers under a wide range of water pressures and conditions. They not only operate on mains pressure but are also suitable for unequal, or equal low pressure uses. The electric storage water heaters can deliver more than 40 litres of hot water a minute, enough hot water to meet the needs of most households. Due to their insulation qualities, the optimum water temperature is maintained longer, saving energy and ultimately saving on your water heating account.
Optima
Rheem Optima is a mains pressure electric storage water heater offering a solution to indoor and outdoor installations. With models for all households, the Rheem Optima is designed for long life and attracts a 10 year warranty on the Optima cylinder. With capacities from 180 to 400 litres, the Optima features the benefit of a user adjustable thermostat to control water temperatures. The 300 and 400 litre models are fitted with twin elements, supplying your home with hot water boosting 24 hours a day. As a Rheem Optima is a mains pressure water heater, it can deliver over 40 litres of hot water a minute.
Stainless Steel Mains Pressure Water Heaters
Rheem is New Zealand’s number one hot water provider and our range of Stainless Steel Mains Pressure Water Heaters are designed and assembled in New Zealand for New Zealand conditions. Manufactured from high quality Stainless Steel. Rheem Stainless Steel tanks are ideal for installation with a secondary heat source1 that may exceed temperature limits of vitreous enamel cylinders; they can be installed indoors or outdoors and are able to be connected to a range of Heat Pump and/or Solar technologies. This includes direct/indirect or top down external heat source.
Low Pressure Copper
Rheem low pressure water heaters (hot water cylinders) are pre-wired to meet New Zealand standards and building code requirements. With all popular-sized models, Rheem offers three inlets from which to choose from - bottom, left hand or right hand sides. Simply connect existing or new plumbing to the appropriate inlet. Plugs to seal off the unused inlets are supplied with the water heater (hot water cylinder). These water heaters are typically rated for a maximum of 76kPa water pressure. Some "Heavy head" (120kPa) models are also available.
Low Pressure Vitreous Enamel
The new Rheem Low Pressure VE cylinders offer exciting new features and benefits for plumbers, home owners, landlords and property managers. This proven and trusted VE technology suits a wider range of water conditions, ideal for many areas where copper or stainless steel is unsuitable. What's more these water heaters are rated for a maximum "Heavy head" (120kPa) so you'll have better shower pressure when you replace your existing low pressure copper water heater*.With all popular-sized models, Rheem offers three inlets from which to choose from - bottom, left hand or right hand sides. Simply connect existing or new plumbing to the appropriate inlet.
*Please discuss with us if any valve replacements or adjustments are required.
Continuous Flow
Rheem Continuous Flow is a compact, continuous flow gas water heater with optional temperature controllers and is excellent for uses where space is at a premium. It doesn’t store water – instead it heats water as it passes through the unit, meaning it will virtually never run out of hot water. Rheem Continuous Flow meets the Q function standard. This performance standard ensures the water heater smoothes out cold pockets and enhances temperature control during frequent use. With Flame Safe™, Rheem Integrity offers superior builtin safety. Consumer protection is further enhanced with built in diagnostics and operation display status even without controllers. Rheem offers an optional recess box to enable the integrity to be fitted into a wall cavity.
Mains Pressure Gas
Choosing a Rheem Mains Pressure Gas water heater will ensure an abundant supply of hot water. Due to Rheem’s superior design and manufacturing, its range of mains pressure hot water heaters are top performers under variable water pressures and conditions. To underline their flexibility, they operate with mains pressure, unequal pressure and also low pressure. The Rheem mains pressure water heaters are lined with vitreous enamel and are recommended for areas of poor water quality where copper cylinders can sometimes corrode.
Stellar
Choosing a Rheem Mains Pressure Gas water heater will ensure an abundant supply of hot water. Due to Rheem’s superior design and manufacturing, its range of mains pressure hot water heaters are top performers under variable water pressures and conditions. To underline their flexibility, they operate with mains pressure, unequal pressure and also low pressure. The Rheem mains pressure water heaters are lined with vitreous enamel and are recommended for areas of poor water quality where copper cylinders can sometimes corrode.
Ambiheat HDc-270
The AMBIHEAT HDc-270 Heat Pump redefines water heating with its 270L capacity, smart energy efficiency, and independence from direct sunlight. Its advanced microchannel heating technology ensures uniform heating even in cold climates (-5°C to higher ambient temperatures). With a Coefficient of Performance (COP) outperforming standard electric storage heaters by up to 4.5 times, it's remarkably energy efficient. Moreover, the heat pump employs recyclable metals for most of its components, and its features like Vacation Mode and Timer Control prevent unnecessary energy usage. The Rheem Heat Pump water heaters, integrated with large anodes, guarantee a prolonged water heater lifespan.
Raypak Residential Models 200 to 430
Raypak offers a range of residential indoor and outdoor pool and spa heaters in Australasia that can efficiently heat pools of any size, enhancing your swimming experience. Their residential gas heaters come with features such as a cupro-nickel heat exchanger for corrosion protection, polymer headers for extended lifespan, and a programmable digital controller for separate pool and spa settings. These heaters also allow automatic control of pumps and valves if connected. They are easily linked to the Raypak EIB for managing landscaping elements like lights and water features. Additional benefits include energy-efficient "hot surface ignition," a highly corrosion-resistant "ZAM" metal casing, and the option for remote control. These heaters are suitable for both indoor and outdoor installation, with an outdoor configuration being the standard setup.
Raypak Residential Spartan 131
The Spartan 131 outdoor spa heater stands out as Australasia's sole purpose-built spa heater designed with an all-aluminium exterior to offer optimal protection against corrosion. The Spartan comes equipped with a range of standard features, including a digital heater controller, convenient integration with the Raypak EIB system to manage landscaping elements like garden lights, pool lights, and water features. It incorporates energy-efficient 'hot surface ignition', employs polymer headers for extended lifespan, and is specifically designed for outdoor installations. Additionally, a remote control option is available.
EcoPlus
A superior choice over traditional water heaters, using less power, operating quietly (37dB), and harnessing ambient heat through a CO2-based refrigerant (R744) for eco-friendly, efficient heating. Features include automatic heating, fast recovery, no backup element, and easy installation. Boasting a COP up to 4.7 times better than electric heaters, it remains efficient even at -10C. Made from recyclable metals, with a 6-year heat pump and 10-year tank warranty, minimising embodied carbon.
This product can only be acquired through L B White Limited in Wellington.
Recommended Products
Designed and manufactured for over 30 years in New Zealand to meet New Zealand’s energy performance standards, Rheem mains pressure electric water heaters are top performers under a wide range of water pressures and conditions. They not only operate on mains pressure but are also suitable for unequal, or equal low pressure uses. The electric storage water heaters can deliver more than 40 litres of hot water a minute, enough hot water to meet the needs of most households. Due to their insulation qualities, the optimum water temperature is maintained longer, saving energy and ultimately saving on your water heating account.
Rheem Optima is a mains pressure electric storage water heater offering a solution to indoor and outdoor installations. With models for all households, the Rheem Optima is designed for long life and attracts a 10 year warranty on the Optima cylinder. With capacities from 180 to 400 litres, the Optima features the benefit of a user adjustable thermostat to control water temperatures. The 300 and 400 litre models are fitted with twin elements, supplying your home with hot water boosting 24 hours a day. As a Rheem Optima is a mains pressure water heater, it can deliver over 40 litres of hot water a minute.
Rheem is New Zealand’s number one hot water provider and our range of Stainless Steel Mains Pressure Water Heaters are designed and assembled in New Zealand for New Zealand conditions. Manufactured from high quality Stainless Steel. Rheem Stainless Steel tanks are ideal for installation with a secondary heat source1 that may exceed temperature limits of vitreous enamel cylinders; they can be installed indoors or outdoors and are able to be connected to a range of Heat Pump and/or Solar technologies. This includes direct/indirect or top down external heat source.
Rheem low pressure water heaters (hot water cylinders) are pre-wired to meet New Zealand standards and building code requirements. With all popular-sized models, Rheem offers three inlets from which to choose from - bottom, left hand or right hand sides. Simply connect existing or new plumbing to the appropriate inlet. Plugs to seal off the unused inlets are supplied with the water heater (hot water cylinder). These water heaters are typically rated for a maximum of 76kPa water pressure. Some "Heavy head" (120kPa) models are also available.
The new Rheem Low Pressure VE cylinders offer exciting new features and benefits for plumbers, home owners, landlords and property managers. This proven and trusted VE technology suits a wider range of water conditions, ideal for many areas where copper or stainless steel is unsuitable. What's more these water heaters are rated for a maximum "Heavy head" (120kPa) so you'll have better shower pressure when you replace your existing low pressure copper water heater*.With all popular-sized models, Rheem offers three inlets from which to choose from - bottom, left hand or right hand sides. Simply connect existing or new plumbing to the appropriate inlet.
*Please discuss with us if any valve replacements or adjustments are required.
Rheem Continuous Flow is a compact, continuous flow gas water heater with optional temperature controllers and is excellent for uses where space is at a premium. It doesn’t store water – instead it heats water as it passes through the unit, meaning it will virtually never run out of hot water. Rheem Continuous Flow meets the Q function standard. This performance standard ensures the water heater smoothes out cold pockets and enhances temperature control during frequent use. With Flame Safe™, Rheem Integrity offers superior builtin safety. Consumer protection is further enhanced with built in diagnostics and operation display status even without controllers. Rheem offers an optional recess box to enable the integrity to be fitted into a wall cavity.
Choosing a Rheem Mains Pressure Gas water heater will ensure an abundant supply of hot water. Due to Rheem’s superior design and manufacturing, its range of mains pressure hot water heaters are top performers under variable water pressures and conditions. To underline their flexibility, they operate with mains pressure, unequal pressure and also low pressure. The Rheem mains pressure water heaters are lined with vitreous enamel and are recommended for areas of poor water quality where copper cylinders can sometimes corrode.
Choosing a Rheem Mains Pressure Gas water heater will ensure an abundant supply of hot water. Due to Rheem’s superior design and manufacturing, its range of mains pressure hot water heaters are top performers under variable water pressures and conditions. To underline their flexibility, they operate with mains pressure, unequal pressure and also low pressure. The Rheem mains pressure water heaters are lined with vitreous enamel and are recommended for areas of poor water quality where copper cylinders can sometimes corrode.
The AMBIHEAT HDc-270 Heat Pump redefines water heating with its 270L capacity, smart energy efficiency, and independence from direct sunlight. Its advanced microchannel heating technology ensures uniform heating even in cold climates (-5°C to higher ambient temperatures). With a Coefficient of Performance (COP) outperforming standard electric storage heaters by up to 4.5 times, it's remarkably energy efficient. Moreover, the heat pump employs recyclable metals for most of its components, and its features like Vacation Mode and Timer Control prevent unnecessary energy usage. The Rheem Heat Pump water heaters, integrated with large anodes, guarantee a prolonged water heater lifespan.
Raypak offers a range of residential indoor and outdoor pool and spa heaters in Australasia that can efficiently heat pools of any size, enhancing your swimming experience. Their residential gas heaters come with features such as a cupro-nickel heat exchanger for corrosion protection, polymer headers for extended lifespan, and a programmable digital controller for separate pool and spa settings. These heaters also allow automatic control of pumps and valves if connected. They are easily linked to the Raypak EIB for managing landscaping elements like lights and water features. Additional benefits include energy-efficient "hot surface ignition," a highly corrosion-resistant "ZAM" metal casing, and the option for remote control. These heaters are suitable for both indoor and outdoor installation, with an outdoor configuration being the standard setup.
The Spartan 131 outdoor spa heater stands out as Australasia's sole purpose-built spa heater designed with an all-aluminium exterior to offer optimal protection against corrosion. The Spartan comes equipped with a range of standard features, including a digital heater controller, convenient integration with the Raypak EIB system to manage landscaping elements like garden lights, pool lights, and water features. It incorporates energy-efficient 'hot surface ignition', employs polymer headers for extended lifespan, and is specifically designed for outdoor installations. Additionally, a remote control option is available.
A superior choice over traditional water heaters, using less power, operating quietly (37dB), and harnessing ambient heat through a CO2-based refrigerant (R744) for eco-friendly, efficient heating. Features include automatic heating, fast recovery, no backup element, and easy installation. Boasting a COP up to 4.7 times better than electric heaters, it remains efficient even at -10C. Made from recyclable metals, with a 6-year heat pump and 10-year tank warranty, minimising embodied carbon.
This product can only be acquired through L B White Limited in Wellington.
Suitable for both indoor and/or outdoor installations - the Rheem Heavy Duty electric range has been designed to be used whenever a large quantity of hot water is required. Rheem Equa-Flow. An Equa-Flow manifold system allows you to make multiple installations of up to eight Rheem water heaters on a single manifold. It's a modular system which lets you operate those eight heaters as though they were one. The cylinder is made from a special grade of steel, protected by two coats of a vitreous enamel, a larger, thicker anode and CFC free polyurethane foam insulation ensuring - heat losses are kept to a minimum. For high temperature applications such as sanitising, the Rheem Heavy Duty models have thermostats adjustable to 82°C.
Rheem Heavy Duty Gas water heaters have been designed to be used whenever large quantities of hot water are required. The cylinder is protected by multiple anodes and a double layer of vitreous enamel provides long life protection. So, if you require a water heater which is flexible, efficient and economical to run, the Rheem Heavy Duty model is for you.
In commercial applications, Raypak gives you significant cost savings. Raypak’s a compact, efficient heating design which is the ideal way to heat large quantities of water for both hot water and hydronic applications. Raypak copper tube gas water heaters are high quality, versatile and compact. Their thermal efficiency is an outstanding 82%, and because they have Hot Surface Ignition (HSI) they save on operating costs too. Raypak’s lightweight ceramic fibre refractory panels have an ingenious design which reduces heat losses – and this gives you further savings. Raypak’s compact design makes it easy to install.
The Rheem commercial storage tanks offer the perfect combination of performance and long life flexibility. They connect to the mains pressure water supply with 50mm water connections for maximum flow and are suitable for use in combination with a Raypak water heater as a buffer tank, for solar preheat storage or as additional storage for a Rheem hot water system. The storage tanks can be installed utilising the Rheem Equa-Flow principle, in a bank of up to eight units to provide 3280 litres of storage or in multiple banks if more storage is required. And they are covered by the Rheem 5 year customer protection plan.
Rheem's Commercial Heat Pump is designed with the commercial user in mind. Up to 22kW output means over 6,500 litres of hot water can be produced per day. Furthermore it delivers high thermal efficiency and hot water at 60°C something not all heat pumps can boast. Only the world's best components have been selected to ensure optimal performance and durability. Up to six heat pumps can be manifolded together and controlled by one master controller and a combination of storage tanks can be manifolded to provide the required storage capacity. An indoor and outdoor model is available to suit all installations.
The Rheem Lazer Office offers simplicity with efficiency. An attractive asset to any workplace kitchen or boardroom, Rheem Lazer Office is packed with performance features with a clean, sophisticated look. It is available in two stylish finishes — powder coat white and brushed stainless steel. Easy to operate and keep clean, Rheem Lazer Office is available in three and five litre capacities — equating to 20 to 35 cups of ready to use boiling water and 103 cups recovery per hour. The temperature can be set from 70 to 99 degrees, depending on how hot you like your drinks.
Rheem Lazer Eco is a cost-effective boiling water powerhouse designed for a wide range of installations such as the workplace or sports club. It’s easy to use with a one-touch button to switch on “Eco Mode” which automatically turns the Lazer Eco off after two hours, reducing power consumption. “Eco Mode” can reduce energy use by over 40%. Easy to Clean - The good looking white powder coat finish is easy to clean and the Lazer Eco comes in 3, 5 and 7.5 litre models delivering up to 50 cups immediately and 103–123 cups of boiling water an hour.
The Rheem Lazer Commercial is a high capacity boiling water system designed for the demands of a busy workplace, sports club, conference centre and more. The Lazer Commercial range has capacities of 7.5, 10, 15, 25 and 40 litres that can deliver from 50–247 cups of boiling water an hour and 103–241 cups per hour recovery. The Rheem Lazer Commercial is energy efficient, safe, and compact. Available in White and Stainless Steel.
The modular Rheem on-tap series provides a beautifully efficient solution, regardless of your needs and application. Boiling, chilled and filtered water combinations can be specified with the intelligent Rheem on-tap series. And because it’s from Rheem, you know it's backed by our nation-wide service and support network, as well as our reputation for quality and thoughtful design. Designed in partnership with architects, interior designers and hydraulic engineers, the Rheem on-tap series provides clear cut advantages in the areas of aesthetics, usability, performance efficiency and installation.
Rheem New Zealand manufactures a range of "Zip" overbench product that is filled and switched manually. The unit is filled via an appropriate valve until the required level is reached as viewed in the gauge glass. To boil the water, simply press the manual start switch. The unit will automatically switch off once the water has boiled. Zip units have delivered boiling water tirelessly throughout New Zealand for generations. They are an ideal and economical option for church halls, clubs and factories or anywhere boiling water is required infrequently. Today the Zip product is available in 5 sizes from 4.5 litres to 34 litres.
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When you're looking for top Wellington Plumbers, L B White is the company you can trust. Reach out to us today to schedule a maintenance consultation or to learn more about our services.
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