Buying a heat pumps - the checklist

  • Checklist before buying a heat pump

    Before buying a heat pump there is a number of check questions to be taken into consideration. Take an online tour in the land of the heat pumps and follow our guide.

     

  • Present heating system evaluation

    Most people change their heat pumps due to high heating costs. Try making a cost analysis for at least the last year with a snapshot going back further so that an unusually mild - or cold - winter does not give a misleading picture.

    If you plan on upgrading your heating system think about renewable, hassle free heating that can cope with coldest days in winter. 

    Boilers and oil tanks take up space. A heat pump uses less than half a square meter, freeing up valuable space.

  • Principle of heat extraction

    Air heating does not require drilling or hoses being laid, a great solution when land is limited and a partial upgrade is being considered – heat pump + current system.

    Geothermal energy is a stable heat source, where one or more ground - holes are drilled. This method is unobtrusive for the garden. 

    A system using Ground Source means that a long looping hose is buried about a meter below your property. A big part of the property will need to be dug up, putting it temporarily out of use. 

  • Your heating and hot water requirements

    In producing heat and hot water and choosing a heat pump size be aware of your domestic hot water demand and heat receivers.

    For lower demands there are 180 liter heat pumps with an integrated water heater with an option of a second tank for more demand. 55-60 °C is sufficient. A heat pump heats radiators and wet floors regardless of the required supply temperature, however if the heating supply line is lower than consumption then less energy is needed, in short giving MAX efficiency.

  • Cooling – comfort all year round

    Besides heating and hot water, during hot summers a ground source heat pump can provide cooling indoors, known as passive and active cooling.

    By circulating a cool liquid in the loop, cooling is created at a cost equal to a couple of light bulbs. This technique is called passive cooling and can be used with all ground source heat pump solutions. 

    If passive cooling is insufficient, a heat pump with the help of a compressor, will produce more cooling.

  • Competing heat pump performance

    COP (Coefficient of Performance), is a heat pump's capacity to produce heat against the energy needed to extract it. COP 4 means that 1 kw of electricity gives 4 kw of heat energy. However, due to differing indoor and outdoor temperatures, you should know a heat pump’s efficiency on average throughout the seasons, night and day. This value is the Seasonal Performance Factor (SPF). Check how effective the air heat pump is when it is really cold. A good air heat pump will retrieve energy to -20 °C

  • Sizing & anticipated savings

    A larger heat pump costs more but has lower running costs and visa-versa. Correct sizing will give the optimal balance between investment and operating costs.

    Installing an efficient heat pump reduces heating costs from 50 - 75 % compared to an old heating system. Factors affecting output: the condition of the house, heating system, outdoor temperature – climate zone and the price trend of the type of energy being used.

    Note! A good heat pump installation increases the value of your home.

  • Cost quotation

    Compare your quote! Anything from total costs for a turnkey installation to disconnection and removal of the old boiler. Cheaper heat pumps should have the output to be able to heat your home. The tempting purchase price can be swallowed up by higher running costs.

    A heat pump is a part of the entire heating system which also consists of a heat distribution system and a ground source. A good product and a reliable and competent contractor of the entire installation is the key to success. 

  • After sales

    Normally, a heat pump should just run all year round and be maintenance free, although sometimes service is necessary. It is then important to have a dependable retailer.

    At warranty - do not be off put by the length of the insurance period, check what is covered. It is important that the insurance covers the whole product not just the compressor.

    Ask for remote control. Raise the heating in your house via the Internet when you are about to travel home after a holiday.

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