On Tue, 27 Feb 2018 20:41:58 +0000, Enrie Membership
wrote:

I've just had a 6' x 6' shed erected in the garden to house a few
stationary engines which I want to keep above freezing in the winter. I
do have an electrical supply nearby. What are folks thoughts on the most
efficient form of heating that will keep the shed just above freezing
point?.

Electrical Tubular heater 5' 200w (has the advantage of having a frostat
onboard)

Old fashioned paraffin heater (I would have to light it if the
temperature was liable to drop below freezing)

Any thoughts, comments or suggestions welcome

Do mean you one of those standalone heaters or a fixed one with a
flue?

Paraffin will produce water vapour , almost equivalent to the amount
of Paraffin used. Not ideal in the proximity of things that can rust
like old engines. A heater with a flue will help but some heat will go
up it as well so the electric may well be cheaper to run.

G H