I'm spending a lot of time in the garage and I'd like to be able to heat it whilst I work in there. I was wondering about these quartz patio heaters which are advertised as "the only heat that doesn't blow away". Are they any good? I notice they are only rated at about 1.2kW, whereas a fan heater might be 3kW. Is this because they are more efficient or would they not warm me as much as a fan heater?
I see they say they must be mounted 2.7 metres high. Is this because the higher they are the wider area they will cover? For a patio, that's fine, but who has a 2.7m high garage? Could I mount it lower?
I'm wondering if I need some frost protection in there to keep the odd tins of pint from freezing and too keep condensation off the tools to prevent rust. Would a tubular heater on a frost stat do, and if so is there a formula to calculate what size heater I'd need?