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Post by sunshine on Sept 6, 2013 14:33:17 GMT
Hello everyone,
I need advice please, I'm new to greenhouse gardening.
I have a new 11' x 13' greenhouse, my first and I'm thrilled. As the cooler nights will be approaching I have been looking at electric heaters. I already have two propagators. As I intend to have some seedlings potted on and geraniums kept from this summer I guess I should keep it at 6 oC - 8 oC?? Can someone suggest a good heater. I have been educating myself on the web and some are so expensive. They have different wattage and cover various areas. I won't be keeping exotic plants.
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Post by Tel on Sept 6, 2013 16:45:41 GMT
Welcome to the forum Sunshine.  I cannot recommend a heater, but with a greenhouse that size, if you are going to use a electric heater you would need a 3 kilowatt to keep it frost free. |
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Post by sunshine on Sept 6, 2013 17:43:24 GMT
Welcome to the forum Sunshine. I cannot recommend a heater, but with a greenhouse that size, if you are going to use a electric heater you would need a 3 kilowatt to keep it frost free. Hello Tel, thanks for replying. Do you mean that a 3kw will only keep it frostfree, not heated to say 7oC |
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Post by Tel on Sept 6, 2013 18:00:47 GMT
Welcome to the forum Sunshine. I cannot recommend a heater, but with a greenhouse that size, if you are going to use a electric heater you would need a 3 kilowatt to keep it frost free. Hello Tel, thanks for replying. Do you mean that a 3kw will only keep it frostfree, not heated to say 7oC My greenhouse is 10ftx6ft and my heater does 10 centigrade no problem that is the maximum I want but will go higher if needed. I think a 3 kilowatt would reach 7c easily enough at that size. If you do not need the whole greenhouse in winter you could divide it off with bubble wrap and heat half of it saving money. |
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Post by scrumpy on Sept 6, 2013 18:45:31 GMT
I would agree with Tel. Make sure it has a thermostat so you can set it to go no higher than 50'f.
You'd need a maximum /minimum thermometer to set it to.
My cheap Argos heater does the job nicely.
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Post by sunshine on Sept 6, 2013 21:54:14 GMT
Hello Tel, thanks for replying. Do you mean that a 3kw will only keep it frostfree, not heated to say 7oC My greenhouse is 10ftx6ft and my heater does 10 centigrade no problem that is the maximum I want but will go higher if needed. I think a 3 kilowatt would reach 7c easily enough at that size. If you do not need the whole greenhouse in winter you could divide it off with bubble wrap and heat half of it saving money. |
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Post by sunshine on Sept 6, 2013 21:59:46 GMT
I would agree with Tel. Make sure it has a thermostat so you can set it to go no higher than 50'f. You'd need a maximum /minimum thermometer to set it to. My cheap Argos heater does the job nicely. Thank you Scrumpy. I already have a max/min thermometer. I have been buying bits and pieces all along. |
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Post by scrumpy on Sept 7, 2013 7:27:49 GMT
If you want to look at this linkthis will give you some ideas as to staging. No need to spend a fortune on proper stuff with a bit of simple DIY. |
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Post by sunshine on Sept 8, 2013 15:36:09 GMT
Thank you, this has given me a lot to think about. Hubby was thinking of making homemade timber staging, everything helps to keep the cost down.
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Post by sunshine on Sept 8, 2013 15:38:44 GMT
Hello Tel, thanks for replying. Do you mean that a 3kw will only keep it frostfree, not heated to say 7oC My greenhouse is 10ftx6ft and my heater does 10 centigrade no problem that is the maximum I want but will go higher if needed. I think a 3 kilowatt would reach 7c easily enough at that size. If you do not need the whole greenhouse in winter you could divide it off with bubble wrap and heat half of it saving money. Now thats a good idea to divide it off with bubblewrap, thank you. |
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Post by lesley on Sept 9, 2013 17:55:57 GMT
My greenhouse is 10ftx6ft and my heater does 10 centigrade no problem that is the maximum I want but will go higher if needed. I think a 3 kilowatt would reach 7c easily enough at that size. If you do not need the whole greenhouse in winter you could divide it off with bubble wrap and heat half of it saving money. Now thats a good idea to divide it off with bubblewrap, thank you. Silly question Sunshine why do you wont it heated to 7 degrees  |
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Post by sunshine on Sept 10, 2013 15:16:45 GMT
Silly question Sunshine why do you wont it heated to 7 degrees [/quote]Hi Leslie, As greenhouse gardening is new to me I looked for info on my computer. I read that to keep geraniums alive during winter and for protection for young summer bedding plants during February, It would need to be kept at 7oC. Please correct me if I'm wrong. |
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Post by lesley on Sept 16, 2013 17:28:50 GMT
Hi Sunshine, I also have a large g/h 10x8 which I've only had for the last 3 years, I bubble wrap mine when it starts getting cold but I also have a heater so if it drops below 5 it comes on, last year I did the same and never lost any thing. I had lots of things growing geraniums fuchsia and I also started my seeds of early. Where in the country are you based ? I'm south. |
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Post by sunshine on Sept 18, 2013 20:50:40 GMT
Hi Sunshine, I also have a large g/h 10x8 which I've only had for the last 3 years, I bubble wrap mine when it starts getting cold but I also have a heater so if it drops below 5 it comes on, last year I did the same and never lost any thing. I had lots of things growing geraniums fuchsia and I also started my seeds of early. Where in the country are you based ? I'm south. Hi Lesley, Thanks, that's very encouraging, the fact you never lost a thing is great. As this is my first winter in the greenhouse I'm a bit nervous.I live in southern Ireland, it can get very cold here. Maybe you could help me with another query. I have a digital max, min thermometer/hygrometer. What is a safe reading on both for the greenhouse. The temperature I have a fair idea about but the other not a clue. |
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Post by robh on Sept 22, 2013 15:23:22 GMT
sunshine i have an 8x6 i use at home and have it bubble wrapped i got a firtree gas heater from a car boot and one i got last year they are both propane and my ghouse was a constant 60 through the winter months as the heaters are themostaticly controlled it was on pilot a lot of the time i used about 30kg of gas wich was about 36quid roughly will expect to use a full 47 kg bottle this year as setting onions and dahlias off 1st jan
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I cannot recommend a heater, but with a greenhouse that size, if you are going to use a electric heater you would need a 3 kilowatt to keep it frost free. 
