Log burning boiler with a 60 kw output with 4,000 ltrs 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.
I takes one days work to cut, split and stack a weeks 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 ton add a pellet burning option fit times when you are away. I plan to install this in the summer.
I estimate we will save 9,000 ltrs of oil a year, not bad for 1 days work a week in winter.
Know your requirements
Work out costs
Check security of fuel supply, remember 25 ton of logs is a big pile and you need 2of these for a 2 year supply.
Use seasoned wood only, max moisture content 25 percent.