Heating greenhouse/burning weeds.

[greenishfing]

I have vague memories of my grandad's greenhouse. It was large, warm, and had the most gorgeous smell (tomatoes). He was a coalman, so obviously had access to large amounts of coal. I remember that he had an old rocking chair next to a coal or coke burning stove in there where he used to go and hide from my grandma. I remember the smell more than anything.
My question is, is there some kind of heater that I could use in the winter months in the greenhouse that would keep the greenhouse warm overnight that could be fed on weeds instead of coal.
If there isn't could one of you clever bodgers invent one please.

[Bren In Pots]

I can only think of something like a Hotbed, here's a link to a older thread:-

https://www.growfruitandveg.co.uk/gr...eds_98255.html

hope this helps.

As a kid we'd play in the GH it had a coal fired boiler room were the rabbits lived then the GH itself had 2 rows of pipes going around the inner wall, I remember it being warmer than our house.

[greenishfing]

I can only think of something like a Hotbed, here's a link to a older thread:-

https://www.growfruitandveg.co.uk/gr...eds_98255.html

hope this helps.

As a kid we'd play in the GH it had a coal fired boiler room were the rabbits lived then the GH itself had 2 rows of pipes going around the inner wall, I remember it being warmer than our house.

I think my grandad's had some kind of wide bore pipes that ran through raised beds. I also remember wooden barrels to catch the rainwater.

[Urban]

I think my grandad's had some kind of wide bore pipes that ran through raised beds. I also remember wooden barrels to catch the rainwater.

Your grandad's greenhouse sounds cool

perhaps you could build some kind of " rocket mass heater " in there, lots of info on google

they reckon they will run off small bits of wood and twigs, etc

would be a nice project, I would like to do something like it myself eventually. maybe when I retire