On 29/11/2020 12:07:38, T i m wrote:
On Sun, 29 Nov 2020 08:44:48 +0000, alan_m
wrote:
snip
Just fit a diesel heater
https://www.youtube.com/watch?v=7NBMq5o_UJU
100s of listings on Ebay so possibly a popular item with electric car
owners
snip
Mate just bought one for his VW weekender van and was asking me how he
could / should power it as I think hoping he could use a small
auxiliary battery, rather than having to run the main battery down.
As it's diesel it looks like it uses a glow plug to (initially) ignite
the fuel meaning it draws about 10A to start with and then drops down
to 1A after that (for the blower fan and fuel pump).
Depending on if it actually shuts right down when up to temp or not,
then if it was on for 8 hours overnight that could all add up re the
drain on any supply battery.
It is normal to have a leisure battery and a voltage controlled relay
that connects the two whilst the engine is running and in charging mode.
That leaves the starter battery isolated and can perform it's normal
duties independent of any auxiliary loads.