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Duoheat Pool & Underfloor Heat Pump: Pool Up to 65m2 & Underfloor up to 180m2
Description

The Duoheat range of dual-purpose heat pump water heaters eliminates the need to invest in two separate heat pumps. They are ideal for heating users' pools and underfloors, reducing unit redundancies and minimising the overall footprint of their equipment. 

These units are ideal for swimming pools with a surface area up to 65m² in the Coastal North Island and an underfloor area of up to 180m2 in Northland, Auckland and Coastal Bay of Plenty (see "Scope" for further details). Typically, for every 1kW of electric input, users receive 5kW worth of heat. 

Key Features
  • Energy efficient
  • Environmentally friendly
  • Easy operation
  • Consistent performance from -10°C to 45°C
  • Engineered and built in New Zealand from local and imported parts
  • Underfloor onboard buffer tank and circulation pump (with Ub models only)

Duoheat BENEFITS

Duoheat heat pump water heaters offer the same advantages of Performance Plus heat pump water heaters with the addition of:

  • Eliminating the need for investing in two or three separate heat pump water heaters
  • Providing a smaller overall footprint
  • Reducing equipment redundancies
  • Lower capital investment over two separate units
NZ-Owned Business
NZ-Owned Business
Scope of Use

The heat pump most suited to each situation is determined by a number of factors. When combining the heating for a swimming and underfloor, sizing priority is given to the area has the greatest load requirement. These factors include things such as; surface area of the pool, whether the pool has a cover and the time it is covered, underfloor area, building structure and local temperature and weather conditions.

For more information about heat pump sizing please contact Hot Water Heat Pumps. As a general guide to heat pump requirements for an extended season of swimming from mid October to mid April and underfloor area based on modern insulated houses with a 2.4m stud as listed:

7KW Pool & 5kW Underfloor HEAT PUMP - 7GP7U5-1 or 7GP7Ub5-1 (Ub model includes buffer tank & circulation pump)

  • Residential Pool (up to 4 hours per day uncovered) with a surface area up to 35m2 for most of the North Island, up to 29m2 for the Central North Island and South Island.
  • School Pool (up to 6 hours per day uncovered) with a surface area up to 26m2 for most of the North Island, up to 21m2 for the Central North Island and South Island.
  • Commercial Pool (up to 12 hours per day uncovered) with a surface area of up to 23m2 for most of the North Island, up to 12m2 for the Central North Island and South Island. 
  • Underfloor area of up to 104m2 (providing 50 Watts/m2) for Northland, Auckland, and Coastal Bay of Plenty.
  • Underfloor area of up to 80m2 (providing 65 Watts/m2) for Hamilton, Gisborne, Taranaki, Coastal Hawkes Bay and Wellingon.
  • Underfloor area of up to 61m2 (providing 85 Watts/m2) for the Central Plateau and South Island.

11KW Pool & 8kW Underfloor HEAT PUMP - 7GP11U8-1 or 7GP11Ub8-1 (Ub model includes buffer tank & circulation pump)

  • Residential Pool (up to 4 hours per day uncovered) with a surface area up to 55m2 for most of the North Island, up to 50m2 for the Central North Island and South Island.
  • School Pool (up to 6 hours per day uncovered) with a surface area up to 40m2 for most of the North Island, up to 33m2 for the Central North Island and South Island.
  • Commercial Pool (up to 12 hours per day uncovered) with a surface area of up to 33m2 for most of the North Island, up to 17m2 for the Central North Island and South Island. 
  • Underfloor area of up to 154m2 (providing 50 Watts/m2) for Northland, Auckland, and Coastal Bay of Plenty.
  • Underfloor area of up to 118m2 (providing 65 Watts/m2) for Hamilton, Gisborne, Taranaki, Coastal Hawkes Bay and Wellingon.
  • Underfloor area of up to 91m2 (providing 85 Watts/m2) for the Central Plateau and South Island.

14KW Pool & 9kW Underfloor HEAT PUMP - 7GP14U9-1 or 7GP14Ub9-1 (Ub model includes buffer tank & circulation pump)

  • Residential Pool (up to 4 hours per day uncovered) with a surface area up to 65m2for most of the North Island, up to 60m2 for the Central North Island and South Island.
  • School Pool (up to 6 hours per day uncovered) with a surface area up to 48m2 for most of the North Island, up to 43m2 for the Central North Island and South Island.
  • Commercial Pool (up to 12 hours per day uncovered) with a surface area of up to 38m2 for most of the North Island, up to 22m2 for the Central North Island and South Island. 
  • Underfloor area of up to 180m2 (providing 50 Watts/m2) for Northland, Auckland, and Coastal Bay of Plenty.
  • Underfloor area of up to 138m2 (providing 65 Watts/m2) for Hamilton, Gisborne, Taranaki, Coastal Hawkes Bay and Wellingon.
  • Underfloor area of up to 106m2 (providing 85 Watts/m2) for the Central Plateau and South Island. 

Ideal applications

  • Swimming pool and underfloor
  • Indoor pool heating and air heating
Other Performance Attributes

All heat pump models carry a comprehensive two year parts and labour warranty, including the compressor, evaporator coils, heat exchanger and refrigeration systems. The titanium tube within the heat exchanger is covered against corrosion for 30 years for residential use and 10 years for commercial use.

Heat pump water heaters are fitted with protection systems to prevent damage in the event of a malfunction. Such as a flow switch to ensure the heat pump cannot operate without water flow and other refrigeration safeties. If a problem is identified, the unit automatically shuts down before damage can occur.

Documents
7GP11U8-1 Technical Specifications
7GP11Ub8-1 Technical Specifications
7GP14U9-1 Technical Specifications
7GP14Ub9-1 Technical Specifications
7GP7U5-1 Technical Specifications
7GP7Ub5-1 Technical Specifications
Brochure
Additional Information

Products include hot water heat pump solutions for hot water systems, swimming pool and spa heating and indoor pool ventilation.

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