Heat pumps are too noisy and inefficient – MPs claims’ fact-checked ...Middle East

Heat pumps take heat from the air or the ground, instead of using gas, one of the most carbon-intensive ways to heat homes.

Now, some MPs have highlighted concerns following a report on the plan to put a heat pump in the Parliament building, Portcullis House.

Yes, heat pumps can be fitted into older, larger homes

Some MPs claimed the Government was hypocritical in trying to persuade home owners to have a heating system when there are doubts over using it in Parliament buildings.

The most common kind of this technology, known as air-source heat pumps, emit noise in the range of 40 to 60 decibels (dBA). This is about the same range as a typical gas boiler, or dishwasher, although in cold weather a heat pump will be nearly always running.

Decibel levels fall quickly with distance and so are unlikely to be a problem with semi-detached houses, but can be with terraced houses, which tend to have narrower gardens, said Bean Beanland, a director of the Heat Pump Federation.

Verdict: Unclear

Portcullis House may be getting a heat pump (Photo: Ray Wise/Getty Images/Moment RF)

Claim: Heat pumps use too much power

Reform MP Richard Tice told The Telegraph that “every one of them has faced complaints for consuming too much electricity and generating excessive noise”.

But equally, they cause a home to have a lower gas bill. When heat pump installation is coupled with homes switching to smart electricity tariffs – where power costs less in non-peak periods – they could save people £234 a year, power company Octopus Energy has calculated, based on current electricity and gas prices.

Verdict: False

Claim: Heat pumps are not effective

Heat pumps have been criticised for failing to heat homes well enough. The systems do circulate water through radiators at a lower temperature than gas boilers – around 50C instead of 70C – but this can be compensated for by having the pumps running for more of the day, and by installing larger radiators and better insulation if necessary.

The broader issue of effectiveness at a large office building like Portcullis House has no bearing on decisions by homeowners, said Dr Rosenow. Every house is different, and home owners can only know whether a heat pump would be suitable after advice from an installer.

Verdict: False

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