[Dragonfly]

Hi All

I seem to remember hearing, many years ago,  that burning a night light in a garage generated enough heat to ensure the car started first time even after a frosty night.  I think I recall that you put the night light on the garage floor and covered it with a clay plant pot.

I was wondering if anyone can remember this tip or had even tried it.  If so could it be used in a greenhouse?

thanks
Dragonfly

[richyrich7]

We did this for our day old chicks and or guinea pigs one really cold winter, can't see why it would'nt work for a greenhouse too, you may want to make a "tent" to put it and your plants as I don't think it would keep a whole greenhouse frost free

[peterjf]

hi , we in darkest yorkshire line our greenhouses with bubble wrap, hold it in place with alliplugs , works for us, greenhouse startys up at least 5 degrees above  freezing and keeps going ,

[Dragonfly]

We did this for our day old chicks and or guinea pigs one really cold winter, can't see why it would'nt work for a greenhouse too, you may want to make a "tent" to put it and your plants as I don't think it would keep a whole greenhouse frost free

Many thanks richyrich7 and peterjf also. I am so glad that it wasn't my memory failing me again and that someone has used the technique. I shall try a candle and pot and use a max-min thermometer to see what the temperature actually drops to.

Many thanks
Dragonfly

[richyrich7]

You could wire a low wattage bulb in to the pot if you have mains to the greenhouse saves the candle going out