Heating a Greenhouse

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AlistairMcLennan

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Heating a Greenhouse
« on: February 29, 2012, 11:55 »
I tried to heat my greenhouse with a Propane Tank and Heater, very big mistake as in the cold weather it used a 13kg tank in in about 4 days  :(

What do others use to keep their greenhouse warm? I assume I need to insulate it as well? Do people use electric heating?
Happiness is trying something new even if it doesnt work.

http://gardenplanner.suttons.co.uk/garden-plan.aspx?p=352012

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lmpd

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Re: Heating a Greenhouse
« Reply #1 on: February 29, 2012, 12:12 »
I use a paraffin heater, which is still bloomin' expensive, at about 7 quid for 4 litres and that doesn't even last a week!!! :(

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DD.

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Re: Heating a Greenhouse
« Reply #2 on: February 29, 2012, 12:22 »
Electric fan heater, well insulated greenhouse, plug in thermostat set at sufficient to keep the frost off at the mo.

During the current spell, it's not going at all.
Did it really tell you to do THAT on the packet?

Seeds are SOWN, planting's for plants (and bulbs & tubers)!

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AlistairMcLennan

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Re: Heating a Greenhouse
« Reply #3 on: February 29, 2012, 16:22 »
Impd - I thought about Paraffin but decided that was too expensive too.

DD - I had thought about Electric, just need to get a cable to the Greenhouse at bottom of garden  lol  How do you insulate?  Do you put bubble wrap on all of the glass?

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DD.

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Re: Heating a Greenhouse
« Reply #4 on: February 29, 2012, 16:23 »
Every bit!

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AlistairMcLennan

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Re: Heating a Greenhouse
« Reply #5 on: March 01, 2012, 11:08 »
More questions for you DD  :)

How to you attach the bubblewrap? I was thinking using small spring clamps to attach it on the frame.  Not too keen on using tape or adhesive.

How long do you leave the bubblewrap on for?

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DD.

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Re: Heating a Greenhouse
« Reply #6 on: March 01, 2012, 11:22 »
Something like this:

Bubble wrap clips

OK a long as you've slots in the glazing bar!

I try & leave it on all year, as it helps keep the heat out in summer. I renewed it this year.

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Totty

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Re: Heating a Greenhouse
« Reply #7 on: March 05, 2012, 08:43 »
I used to use a parafinn heater but found that the lack of adjustment and daily checking, putting out when not needed and relighting to much fuss. Have now installed an electric fan heater which is inside one of those wooden growhouses which is inside the greenhouse. Effectivly i have a large heated propagator which all the tender things go into. I dont personnally need to heat the whole greenhouse now.
 A friend of mine has just got a gas heater which looks good, all temperature controlled, but even though gas is said to be cheaper to run, he now has to get glass cut here and there for ventillation and vents for fumes. Cant go far wrong with electric IMO

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Caretaker

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Re: Heating a Greenhouse
« Reply #8 on: March 05, 2012, 16:29 »
At the moment i use a small electric tube heater at night and a electric propagater plus bubble wrap.
Fixed the bubble wrap with hot glue gun, so far it has stayed up.
« Last Edit: March 05, 2012, 16:44 by DD. »
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mumofstig

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Re: Heating a Greenhouse
« Reply #9 on: March 05, 2012, 16:32 »
Something like this:

Bubble wrap clips

OK a long as you've slots in the glazing bar!


I have but the clips seem to keep popping out, have an assortment of clothes pegs holding it all up now  ::)
Lesley x
I'm not good, I'm not bad - I'm just me, and sometimes I have to apologise for that ;)

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middypuss

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Re: Heating a Greenhouse
« Reply #10 on: March 06, 2012, 22:16 »
I simply erect a blowaway plastic greenhouse(from argos) in my greenhouse and heat that with a fan heater attached to a thermostatically controlled plug set to 12 centigrade.When its cold costs around 50p/night(worst case scenario around 90p) but recently has cost virtually nothing and you get a large growing area.

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sizer247

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Re: Heating a Greenhouse
« Reply #11 on: March 13, 2012, 10:56 »
i use a parafin heater an i paid £6.50 for 5 litres i only had a small flame an my seeds have come thru in 2 weeks class! i got the heater off ebay brand new £20 not bad , im very pleased with how its worked out

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mumofstig

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Re: Heating a Greenhouse
« Reply #12 on: March 13, 2012, 10:58 »
How much parafin did it use in a week?

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aelf

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Re: Heating a Greenhouse
« Reply #13 on: March 13, 2012, 12:25 »
I use one of these:

http://www.charliesdirect.co.uk/products/parasene-large-cold-frame-heater

But I only paid £3 for it at a car boot sale  :)

It holds about 2 litres of parrafin and, if you keep the wick short, it lasts about 12 days. It is only really for keeping the chill off when the temp drops below freezing but it does a good job.

Downside is that soot builds up on the mesh over the flame and needs cleaning off every couple of days.

There's more comfrey here than you can shake a stick at!

http://www.wedigforvictory.co.uk/dig_icon.gif[/img]

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BigPaddy

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Re: Heating a Greenhouse
« Reply #14 on: March 13, 2012, 16:53 »
Small paraffin heater inside four tier greenhouse thingy inside greenhouse.

I am also considering trying what I saw another chap doing. He has a candle in a clay pot. On top of that he puts another pot upside down. The pots warm up and give out enough warmth to keep a covered space within the greenhouse nice and warm. I think there is something in restricted airflow which makes the candle burn slowly, I'll need to ask about that.

BIG-Paddy
Patrick
Hull, East yorkshire



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