Designed and manufactured to meet New Zealand's energy performance standards, Rheem mains pressure electric water heaters (hot water cylinders) are top performers under a wide range of water pressures and conditions. Models are rated at a maximum of 1000 and 1400 kPA water pressures respectively (depending on the model). They not only operate on mains pressure but are also suitable for unequal or equal low pressure uses. The electric storage water heater (hot water cylinder) can deliver more than 40 litres of hot water a minute, enough 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 ( hot water cylinder ) offering a solution to indoor and outdoor installation. 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 ( hot water cylinder ), 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.

¹ 135L model is not Heat Pump/Solar compatible

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.

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.