Re: Heating a Polytunnel
Posted: Sun Apr 24, 2011 9:29 am
There's really no need to heat a whole polytunnel unless you're growing WAY out of season, and in Bedford you should be sowing from around the last week in Feb most years. Apart from a small electric propagator for really early sowings of tomatoes etc, adding a cold frame or tunnel cloche INSIDE the tunnel is probably all you'll need. It gets much warmer inside one of those than the rest of the tunnel!
As for livestock, I did the maths a while back and each chicken produces 10-15W!
As for livestock, I did the maths a while back and each chicken produces 10-15W!