A high temperature Air to water heat pump which could directly replace gas boilers in our homes
A new heat pump that provides the same high temperature as gas boilers could help to make it easier and cheaper for house owner to switch to low-carbon heating, according to the development of heat pump.
Air source heat pumps and ground source heat pumps have been championed by the UK government in the drive towards net zero, with ministers pushing to ensure 600,000 heat pumps are installed in homes by 2028.
Heating accounts for 47% of all energy consumption in the UK, 55% of which is used by domestic homes, and currently over 80% of domestic heating is provided by natural gas boilers. The combustion of fossil fuel is a significant contributor to climate change and air pollution, and heat pumps are a low-carbon heating system which would significantly reduce harmful emissions.
The high temperature heat pump solution is innovative, simple to install and could be the solution to help homes that are heated using traditional gas boilers
Efficiency is the Key
The heat pump can offer a straight swap for conventional gas boilers. It can achieve temperatures between 60-80°C (the same as most gas boilers), exceeding the 44-55°C range achieved by many conventional heat pumps.
Significantly, the company adds that the heat pump is designed to remove the cost and complexity for homeowners because they won’t have to install new insulation or replace their radiators to make the pump work efficiently. This can often be required when installing lower temperature heat pumps.
The system’s buffer works as a heat battery which provides heat to radiators and generate hot tap water. Full technical details have not yet been disclosed, though.One major concern of high temperature heat pumps, however, is that they are less efficient than lower temperature heat pumps. And this could mean houseowners experiencing higher running costs, potentially wiping out savings made by retaining existing radiators and insulation.
Rather than being a cost-saving low-carbon solution, air source heat pumps are likely to have a larger carbon footprint and cost people more to run. Simply put, running heat pumps at higher temperatures requires more electricity because the unit has to work harder to increase the source temperature further
The government pledged it would aim for low-carbon heating systems such as heat pumps to cost the same to buy and run as fossil fuel boilers by 2030. It also said that big cost reductions of between a quarter and a half by 2025 are expected, as the market expands and technology develops.
In England the govermant will provide eligible house owners with government grants of £5,000 for the purchase of air source heat pumps and biomass boilers
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