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Call:
+44(0)1234
841221
E-mail: [email protected]
River
water can be utilised to heat a boat and in the past systems using
copper coils in the water have been used in conjunction with heat pumps.
However, rules and regulations and the lack of available manufactured
equipment have made this type of system less attractive
Pumping river water through a
heat pump can give very good results, but heat pump units require water
at temperatures above 5 to 8°C (varying depending on type). Whilst
delivering very high-efficiencies for much of the time, this system may
fail to operate in the middle of winter during lower temperatures- just
when you need the most heat, so a back-up heat source is usually
advisable. Oxygen and contaminants in the river water may also be a
concern in some circumstances, causing pump failure and possibly a
system refrigerant leak. But don't let me put you off; this system can
give excellent results if installed correctly.
For those lucky enough to have a spring, this is a much more stable and
better heat source. Its an opportunity not to be overlooked, offering
excellent efficiencies. Again, acidity and impurities in the water can
sometimes make its use prohibitive, but some heat pump units will
tolerate ‘corrosive’ water (some Dimplex models etc). A possible
alternative is to use an intermediate heat exchanger in such
circumstances. However, the added temperature drop and necessary extra
pump can reduce the performance considerably.
The water source should ideally be fairly close to the property, and
should not require pumping up any significant height or the power for
pumping it may detract from the energy savings. Having said that, water
could be taken over considerable distances if the pipe diameter is big
enough, especially in a downward direction. It is a relatively simple
exercise to calculate the pump power required (if any) to get the water
to and through the heat pump unit.
Permission should be sought from the relevant authorities as an
abstraction licence may be needed.
Sales Installation and Service
UK: +44 (0)1234 841221
Tel UK: 01234 841221
Fax: +44 (0)1234 852662
Address:
Orion Air Conditioning And Refrigeration Limited
10 Grisedale Court
Woburn Road Industrial Estate
Kempston
Bedfordshire
MK42 7EE
United Kingdom
Email: [email protected]
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