To understand if your hydronic project is suitable for a heat pump, we have found the first thing a client needs to understand is the difference between a hydronic heat pump and a domestic water heat pump. This is so that you can understand just how different they are in size, upfront cost and running costs.
You see a domestic hot water heat pump is around 1kW in size. This is less than the amount of kW’s that a single large bedroom requires to heat to a comfortable temperature in winter. We find that the average Australian home requires around 20kWs. And with sophisticated technology such as heat pumps, the larger you go the more expensive they are upfront.
Another important aspect of a hydronic heat pump is that it is built and designed to operate in winter conditions at negative temperatures. Most heat pumps won’t generate hot water when the temperature gets below 5C. A Hydronic Heat Pump through its design and far higher quality parts will continue to operate efficiently to around -10C.
So size and quality parts will help explain why they are an expensive product compared to a hydronic gas boiler.