grossbritannien en Products Heat pumps Air-source Weishaupt indoor air-to-water heat pumps (WWP L I)

Weishaupt indoor air-to-water heat pumps (WWP L I)

Weishaupt indoor air-to-water heat pumps use heat in the air as a free source of energy. Available in ratings from 7 to 20 kW.


Weishaupt indoor air-source heat pump Schematic representation of an indoor heat-pump system Cut-away drawing of a Weishaupt air-to-water heat pump

With a Weishaupt air-to-water heat pump you can keep your home warm using ambient air as your heat source - even in sub-zero temperatures.

Indoor air-to-water heat pumps are installed in the cellar or boiler room just like a typical boiler. They duct ambient air from outdoors, transfer the heat to a refrigerant, and pump it to the required temperature. The greatest advantage of this system is that no flue gases are produced, so you don't need a chimney - just an electrical socket. The air ducts can be customised to suit almost any spatial conditions.

Outstanding energy yield: For every kilowatt of electrical energy consumed a Weishaupt air-to-water heat pump generates three to four times as much heat energy. There are special high-temperature versions for replacing existing heating boilers or for installing in older buildings without flat-panel radiators, which enable flow temperatures of up to 75 °C.

Reliable source of heat: Weishaupt air-to-water heat pumps heat reliably, even in sub-zero temperatures down to -25 °C.

Comfortably quiet operation: Weishaupt heat pumps operate extremely quietly. compressors and fans are barely audible, thanks to their special design and the use of vibration dampers

For cooling too: Since a heat pump works like a a fridge in reverse, with the appropriate accessories it can also be used to actively cool buildings. All accessories - from pumps to room thermostats - are available directly from Weishaupt.

Complete heat supply: The heat pumps can also be used for domestic hot water. The Weishaupt Combi Store (WKS) is a particularly elegant solution, combining cylinder, buffer tank, and all the connections between the heat pump, heating circuit, and DHW circuit within a single, compact housing.

Long service life: High-quality materials, robust constructions, and tried-and-tested technology guarantee many years of reliable service.

Eligible for subsidies: Weishaupt heat pumps are extremely efficient and therefore often eligible for energy subsidies. You can find which subsidies may be available to you in the Weishaupt subsidies database.


Wärmepumpen zum Heizen, Kühlen und für die Trinkwassererwärmung
Wärmepumpen zum Heizen, Kühlen und für die Trinkwassererwärmung
PDF • 4.3 MB

Operating instructions

Wärmepumpen-Manager WPM
Wärmepumpen-Manager WPM
PDF • 2.8 MB
Wärmepumpe Luft-Wasser Innenaufstellung WWP L9 ID - L12 ID
Wärmepumpe Luft-Wasser Innenaufstellung WWP L9 ID - L12 ID
PDF • 1.8 MB

DHW cylinders

Weishaupt Combi Store: WKS

The Combi Store brings together within a single compact housing all of the components needed to integrate heat pumps with a heating system, thereby considerably reducing the amount of installation work required. It contains a 300-litre DHW cylinder, a 100-litre buffer tank, hydraulic components, circulation pumps, and electrical auxiliary heating. The Combi Store is designed for use with a large number of the Weishaupt heat pumps.


Weishaupt thermal store: WES-A 660/910, version C

Weishaupt thermal stores organise and distribute the heat produced by different energy sources (gas or oil-fired condensing boilers, heat pumps, solar collectors, solid-fuel boilers, or stoves) with an exemplary degree of efficiency. Inlet dampers ensure that the ideal temperature stratification is always maintained within the thermal store. Energy is also drawn off in an economical manner, with solar energy having priority over any other source.

WES 660 A-C

Weishaupt thermal store: WES 200-500 and WES 660/910, versions S and H

A simplified version of the thermal store for heat pumps without solar heating support. It has connections to the heating system (heating unit or heat pump) and additionally to a solid-fuel boiler, fireplace, or stove.

Version S additionally offers solar DHW heating.


Weishaupt thermal store: WES 100 - 140
This thermal store is designed as an under-set unit and serves as a buffer tank for heat pump systems, evenly releasing heat to a building's heat distribution system.

WES eckig

Weishaupt Aqua Comfort: WAC 300 - 500

A classical water cylinder with a generously dimensioned heating coil for maximum DHW convenience. The large cylinder volume facilitates comfortable hot water temperatures and helps to save energy.


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