Frequently Asked Questions

Most heat pumps should be installed outdoors as they require a good flow of fresh air to operate properly. Some models can however be installed in a pump-house or plant room using the through the wall ducting kit or by cutting a hole through the wall of the plant room to allow the air to be blown outside

A permanent grille must then be installed in the opposite wall of the plant room to allow fresh air to enter the plant room at the same rate as it is leaving.

Generally there is no advantage to putting a heat pump inside a plant room other than to protect it from the weather and possibly for aesthetic reasons.

There are not normally any performance advantages from putting a heat pump inside a plant room. Any surplus heat in the plant room will be expelled within a couple of minutes of the heat pump being turned on and fresh air drawn in from the outside. This causes the temperature inside the plant room to become the same as the outside air temperature negating any performance benefit

Feel free to call us for more advice on this topic

Please see our Installation Tips page for more information

Mini heat pumps (eg Hot Splash) can be plugged into a standard 13A socket.

For larger models, we recommend that armoured cable is used to run the electrical supply to the heat pump.

Armoured cable provides protection from the cable being accidentally damaged and is therefore safer than standard electrical flex cable.

The heat pump should be connected to an RCD device for safety reasons.

Larger heat pumps will draw more than 13A and so a dedicated electrical supply may be required.

It is best to get a qualified electrician to connect your heat pump to the electirical supply. The electrician will also ensure that the heat pump has a proper earth

You can put a heat pump under a tree as long as the tree is more than 2-3 meters above the heat pump.

This is so that the air coming out of the heat pump (on vertical fan models) does not hit the leaves of the tree and then recirculate back into the heat pump. This would cause reduced efficiency.

While the heat pump is operating, the fan will prevent leaves from entering the heat pump.

In the winter, we recommend that you cover the heat pump using one of our specially designed winter covers.

This will prevent leaves from entering the heat pump in Autumn.

Yes, however if you are planning to heat your pond through the winter months, then we recommend the Thermotec Inverter or Duratech Dura+ range of heat pumps as they work down to -15c.

See our Koi Page for more information on using heat pumps on koi ponds.

See our Savings page.

There is also a calculation on the savings page showing how a large 32kw heat pump costs only £3.33 per day to run !

Smaller heat pumps will cost less than this to run.

Each product listing states the warranty offered.

Most of our new heat pumps include an on-site parts and labour warranty.

All heat pumps shipped outside the UK are supplied with a parts-only warranty. Outside the UK you will need to employ a local contractor if required and we will courier any necessary spare parts to you
See our How they work page

There are many factors that should be considered when sizing a heat pump for your swimming pool.

At HeatPumps4Pools we gather the information on how you wish to use your pool and take into account a wide range of factors so that we can give you a heat pump that will meet and exceed your requirements.

If you would like us to recommend suitable heat pumps for your pool, then  please complete our Heat Pump Sizing Form

this will capture a wide range of information about your pool including:-

  1. Pool Dimensions (length, width, average depth in feet or metres)
  2. Swimming season (eg May – Sept, or all year round etc)
  3. Desired water temperature (28c is typical)
  4. If the pool is kept covered when not in use (ie with a solar cover or thermal blanket)
  5. The number of hours per day that the pool is uncovered
  6. If the pool has a single or 3-phase electrical supply
  7. Indoor or outdoor pool
  8. Pool location (eg UK, France, Spain etc please provide address if you would like a shipping quote)
  9. Existing pool heating system
  10. Domestic or Commercial use
  11. If the property is rented or a holiday home
  12. Above ground or in-ground pool

We will then give you our recommened pool heat pumps.

Of course you can always call us if you prefer to run through this by phone !

We can provide our expertise to consider all of these factors and help you choose the best size unit for your pool.

We therefore recommend that you contact us to discuss the size of heat pump that you require before making a purchase.

Each of our product listings has a sizing chart that shows the maximum number of cubic metres (m3) of water that each heat pump model supports.

As a start, compare the volume of your pool in m3 to the sizing chart. If your pool volume is near the maximum size supported, then choose the next model up.

Always allow some “headroom” with the power of your heat pump. This will ensure that the heat pump can still produce enough heat to maintain your required pool temperature on colder days.

Inverter heat pumps should also be sized larger than "on-off" heat pumps so that the unit can run at a reduced power output to give the maximum efficiency of an inverter driven pool heat pump

For rented properties or holiday homes, it is advisable to oversize the heat pump to allow a faster heat up time before guests arrive. We also have heat pumps with lockable keypads to prevent guests from adjusting the pool temperature.

Feel free to call us and we are more than happy to run through the sizing of your pool heater.

Most units have 50mm pipe outlets. They are normally also supplied with 50mm to 1.5″ adaptors as 1.5″ is the most common size of pipe in the UK.

In Europe, 50mm is the most common size of pipe.

Each heat pump listing states the pipe outlet size

We can supply adaptors to go to different pipe sizes if required.