Social Media And Newspapers Are Flooded With Myths About Heat Pumps


twitter thread from janrosenow

Social media and newspapers are flooded with myths about heat pumps.

Let’s take them one by one in this thread.

Myth 1: “Heat pumps don’t work in cold climates.”

False. The most heat pumps can be found in the coldest climates. More than half of all households in Norway have one.…

Myth 2: “Heat pumps don’t perform when it’s cold.”

Mainly false. Even at temperatures below freezing heat pumps still perform well as field data shows. For very cold temperatures well below freezing hybrid systems may be needed.

Social media and newspapers are flooded with myths about heat pumps

Myth 3: “Heat pumps don’t work in existing buildings.”

False. From long-standing research: “The research results clearly show that heat pumps as heating source function reliably also in existing buildings. As a rule, the units worked flawlessly.”…

Myth 4: “Heat pumps don’t work in old buildings.”

False. Recent results from the UK indicate that there is no significant variation in performance based on house age.

I also had a heat pump in my home built in 1880 since 2019 performing very well.… Myth 1: “Heat pumps don’t work in cold climates

Myth 5: “Heat pumps cost more to run & increase heating bills.”

This depends on energy prices in your country. @IEA produced a handy interactive calculation tool that allows you to explore & compare economics of different residential heating systems.…

Myth 6: “A heat pump needs to stay on all the time.”

You never switch the heat pump off manually but this does not mean the heat pump is operating all the time. The system automatically adjusts to outside and indoor temperatures and ramps down when it is warmer.

Myth 7: “Heat pumps work with underfloor heating only.”

Heat pumps work well with radiators too. In some cases radiators may need upgrading. But it has been common practise in recent years for heating installers to ‘oversize’ radiators.…

Myth 9: “Heat pumps are noisy.”

Ground source heat pumps make very little noise. Air source heat pumps can be quiet too as this video shows. Also remember: in the summer when you’re out in the garden heat pumps usually don’t run as no heating required.

Myth 10: “Heat pumps only work in highly insulated buildings.”

False. “Houses do not have to be extensively renovated in order to allow for an installation of a heat pump.”

But good fabric efficiency offers energy system benefits and keep costs down.…

Myth 11: “Turning gas to electricity to heat via a heat pump is less efficient than burning gas in a boiler.”

False. At SCOP 3 a heat pump even if running 100% on gas electricity needs ~1/3 less gas to make the same amount of heat than a boiler.

Myth 16: “Heat pumps cannot be installed in small apartments.”

False. There are projects where tower blocks use ground source heat pumps for example from @KensaHeatPumps. And large heat pumps can fuel district heating networks connecting apartments.…

Myth 17: “Heat pumps will just run on fossil fuel electricity.”

False. It is true that most power grids still include a lot of fossil generation. But every year substantial amounts of renewables are added to the grid driving out fossil generation.…

Myth 19: “There is no consumer demand for heat pumps.”

False. 2022 saw record growth in heat pump sales in Europe and in the US for the first time more than 4m heat pumps were sold surpassing gas furnaces for the first time.…

Myth 21: “Heat pumps are new and untested technology.”

False. The first heat pump as we know it today was built by Peter von Rittinger in 1856. Heat pumps were put in peoples’ homes already many decades ago.

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