Re: Greenhouse Heaters - Gas or Electric - Which is best?

Redrose wrote:

> Hello, at the moment I am heating my greenhouse by a 3 kw Electric
heater. but 
> the electric bill is getting rather large!
> 
> I am thinking of switching to a Propane Gas heater of 2 - 3 kw, has
anybody any 
> thoughts about this?
> 
> Thank you,
> 
> Tony.
> 
Why heat the whole greenhouse?  I am currently bringing on approx 250 
Busy Lizzies and 100 Geraniums in an electrically heated propagator 
(within a greenhouse).  This is a bed of sand with an insulated base and 
an 80W soil warming cable.  On top is a 4' x 2' cold frame insulated 
with bubble plastic.  In a worst case scenario with external temp below 
zero, the air temp in the propagator is always above 8C. I have used 
this system for 4 or 5 years and have had no problems.

Malcolm