Readers tips of the month: biomass and air source heat pump
Posted by Cathy Debenham on 20 March 2012 at 9:02 am
When people register on YouGen we ask them about their renewable energy, and any tips they have for others. Here are our favourites this month:
Drumrossie is retired, and lives in a large, old and difficult to heat house. He has installed a log burning boiler with a 60kW output and with 4,000 litres of hot water storage capacity.
"The system works very well, but requires more wood than I initially invisaged. I have my own timber so that is not a problem. It takes one days work to cut, split and stack a week's supply.
"The failing with a log boiler is the fact that when you are not there you have no heat. Fortunately the boiler I have installed has the option to add a pellet burning option for times when you are away. I plan to install this in the summer.
I estimate we will save 9,000 litres of oil a year, not bad for 1 days work a week in winter."
His tips are:
- Know your requirements
- Work out costs
- Check security of fuel supply, remember 25 ton of logs is a big pile and you need 2 of these for a 2 year supply
- Use seasoned wood only, maximum moisture content 25 per cent.
DaveP is a retired plant engineer with an interest in reducing CO2 emissions and saving money on energy. He has a new solar PV system, and two air to air heat pumps:
"I have recently installed a 4Kw PV system which has been running for about 4 weeks and is operating very close to the predicted values.
"I also have 2 stand alone Fujitsu air to air inverter controlled heat pumps, one in a large conservatory and the other in the dining room which doubles as an office.
"These both work extremely well and on bright days are now producing heat from the PV system for free. I am expecting that during the summer when the conservatory gets too hot I can also cool it for free."
photo by travelling.steve
If you have a question about anything in the above blog, please ask it in the comments section below.
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