Terracotta Pots And Tealight Heater

[peanut]

Hello Folks,

I was wondering if any of you have tried the terracotta pots with tealights/candle heater for your greenhouses to keep the frosts off?
I saw it posted somewhere else and have had a bit of a google but I'm not sure if it would work in an 8 x 6 greenhouse.
I think I will give it a try though.
Have any of you done it?

[Nicos]

I’ve not, but I imagine it only raises them temperature by a degree or so?
Might be better with two or three of them maybe used in conjunction with bottles of hot water giving off heat?..plus fleece?

I didn’t have my greenhouse long enough to play around with those ideas.

Let us know how you get on!

[Mark Rand]

Tealights put out about 32W of heat. Tiny in comparison with an electric or paraffin greenhouse heater.

A calculation on stackexchange estimated a temperature rise of 0.2°C in a 2mx2.5m greenhouse from a single tealight...