As more UK homeowners look for energy-efficient heating solutions, heat pumps are becoming increasingly popular. But despite their growing reputation, there are still plenty of myths surrounding how they work, how much they cost, and whether they’re suitable for British homes.
At K Fisk Plumbing & Heating LTD, we regularly speak to homeowners who are unsure whether a heat pump is the right choice for their property. The good news is that most concerns come from outdated information or common misconceptions.
Here’s the truth behind the biggest heat pump myths.
Myth 1: Heat Pumps Don’t Work in Cold Weather
One of the most common misconceptions we hear at K Fisk Plumbing & Heating LTD is that heat pumps stop working during winter.
In reality, modern air source heat pumps are specifically designed to operate in cold climates and continue heating homes efficiently even in freezing temperatures. Scandinavian countries have relied on heat pumps for years — and their winters are far colder than those experienced in the UK.
Heat pumps extract heat energy from the outside air, even when it feels cold outside.
The Reality:
- Modern heat pumps work effectively throughout UK winters
- Many systems continue operating efficiently below freezing. Locally most of our systems are set to run down to -5c!
- Correct sizing and installation are essential for performance. Incorrectly sized, maintained and set up units will be costly to run.
At K Fisk Plumbing & Heating LTD, we carefully assess every property to ensure the system is correctly designed for the home and heating demands.
Myth 2: Heat Pumps Are Expensive to Run
Many homeowners assume heat pumps cost more to run because they use electricity. However, heat pumps are one of the most energy-efficient heating systems available today.
Unlike traditional boilers, heat pumps move heat rather than generate it through combustion. This allows them to produce multiple units of heat from a single unit of electricity.
The Reality:
- Heat pumps can be significantly more efficient than gas or oil boilers
- Running costs are often lower in well-designed systems
- Smart controls and weather compensation improve efficiency further
At K Fisk Plumbing & Heating LTD, we design systems around your property to maximise efficiency and reduce unnecessary energy usage.
Myth 3: Heat Pumps Only Work with Underfloor Heating
This is another myth we regularly help customers understand at K Fisk Plumbing & Heating LTD.
While underfloor heating works brilliantly with heat pumps, many systems also perform very well with radiators. In some homes, existing radiators may simply need upgrading to larger models to improve heat output at lower flow temperatures.
Our owner has a heat pump in his house originally built 1800s, all solid walls and he is still married!!!!
The Reality:
- Heat pumps work with both radiators and underfloor heating
- Many existing homes can keep much of their current heating system
- Professional heat loss calculations determine what’s needed
Every installation completed by K Fisk Plumbing & Heating LTD starts with a full property assessment to ensure the system performs properly from day one.
You can get an estimate by filling in the heat pump form on the website.
Myth 4: Heat Pumps Are Noisy
Older heat pump systems could sometimes be noticeable, but modern units are far quieter than many people expect. Nearly all are half the decibel output than an oil boiler.
Most outdoor units simply produce a low background fan sound.
The Reality:
- Modern heat pumps comply with strict UK noise regulations
- Correct positioning significantly reduces sound levels
- Most homeowners barely notice the system after installation
At K Fisk Plumbing & Heating LTD, we carefully position every heat pump to ensure minimal disruption and maximum performance.
Myth 5: Heat Pumps Don’t Provide Enough Hot Water
A professionally installed heat pump system can easily provide reliable hot water for everyday family life.
Modern systems use dedicated hot water cylinders designed to store heated water efficiently.
The Reality:
- Heat pumps provide consistent domestic hot water
- Proper cylinder sizing is key
- Systems can comfortably support family homes
The team at K Fisk Plumbing & Heating LTD ensures every system is tailored to the property’s hot water demand.
Myth 6: Heat Pumps Are Only for New Builds
Many people believe heat pumps are only suitable for newly built homes, but that’s simply not true.
Older homes across the UK are successfully switching to heat pumps every year.
The Reality:
- Heat pumps can be retrofitted into many existing properties
- Good insulation helps performance, but not every home needs major renovation
- Correct system design matters far more than property age
At K Fisk Plumbing & Heating LTD, we help homeowners understand exactly what upgrades — if any — are needed before installation.
Myth 7: Heat Pumps Are Difficult to Maintain
Heat pumps are actually known for being reliable and relatively low maintenance.
Because there’s no combustion involved, they often require less servicing than traditional boilers.
The Reality:
- Heat pumps have fewer moving parts than many traditional systems
- Annual servicing helps maintain efficiency and warranties
- Many systems can last well over 10 years or more, in fact we have systems still running we fitted in 2012
K Fisk Plumbing & Heating LTD offers professional servicing and maintenance to keep systems running efficiently year after year.
Why More Homeowners Are Choosing Heat Pumps
With rising energy costs and growing environmental awareness, more homeowners are making the switch to renewable heating.
Benefits include:
- Lower carbon emissions
- Excellent energy efficiency
- Consistent home comfort
- Potential long-term savings
- Future-ready heating technology
Choosing the right installer is just as important as choosing the right system.
That’s why homeowners across Cambridgeshire trust K Fisk Plumbing & Heating LTD for honest advice, professional installation, and ongoing support.
Thinking About Installing a Heat Pump?
If you’re considering upgrading your heating system, K Fisk Plumbing & Heating LTD can help you understand:
We can help with:
- Whether your home is suitable for a heat pump
- What size system you need
- Potential running costs and savings
- Whether radiator upgrades are required
- Available renewable heating options for your property
With the right installation, a heat pump can provide efficient, reliable heating for many years to come. Get in touch today.
