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Heat pumps get a warm welcome in Denmark
New figures from the Danish Energy Agency show that heat pumps are winning increasing favour with householders, reports the Danish Energy Association
New figures from the Danish Energy Agency show that heat pumps are winning increasing favour with householders, reports the Danish Energy Association in its daily newsletter. A survey showed that no less than 98% of respondents were satisfied with their heat pumps, the installation of the equipment, and not least the savings they have realised. And 90% reported that their heat pumps are very simple to operate.
Danish Energy Association, whose member companies sell and provide advice on heat pumps, is not surprised at the positive reaction of householders.
"The Danish Energy Agency's report clearly shows why a heat pump is a real alternative when householders are faced with replacing their old oil-fired heating system. Heat pumps provide the necessary savings on the household budget and are simple to shift over to," says Richard Schalburg, a consultant at the Danish Energy Association.
The savings that can be realised with heat pumps, compared to oil-fired, gas-fired, coal-fired or electrical heating systems, have a thermodynamic explanation. With the latter systems, one joule of supplied energy produces one joule of useful heat – a one-to-one ratio. But with a heat pump, one joule of supplied energy can produce a lot more than one joule of useful heat, by moving existing heat from a cooler temperature (the air or the ground) to a higher temperature (the dwelling space). The usual ratio for heat pumps approaches four-to-one.
Today there are around 40,000 heat pumps installed in Denmark, which are either of the air source or ground source types.
