Hi tmc

ive seen 2 of your videos. nice work

Could you tell me how many watts your heater uses and the temperatures you have to fight against to keep your tree from frost damage. Also is your green house more than one glase thick.

Thanks Steve

Hi, The heater is 1500W heater but tand they have a thermostat and three power settings. I think there is a heating element at the top and bottom so you can select one or the other or both. I think the poly is 7mils and only one sheet. There is a difference of about 16F unheated from inside and outside and I put the portable heater in when we had a 6F night and the bananas froze. I think it got below 25F that day. I've had the heater on since. If it is 40F outside it can get into the high 70's on a clear sunny day. I plan on putting the citrus on heated benchs and inproving the insulation and experimenting with some solar collectors. I could put poly panels inside to I guess.

NewEnglandGardening!

I've been checking out your videos since I started growing citrus a few months back. I definitely appreciate the advice and visual component. They really helped me get started!

-Mike B

tmc2009

Thanks for getting back. Each layer has a resistance of "X". The air layer between the two glazes has a resistance of "Y". Double glaze would give you a resistance of "XYX". I do not know what the values for X and Y are, But having two layer will give you more than double the insulation. Your video has help me a lot as well as your reply.

Thanks