I haven't had belt squeal, even when testing at "fullish" load, 2 X 100
W lights, 250 W, spot, heater blower max, wipers, rear de-fogger.

(90 A alt)

But I do wonder about water pump speed at idle.

Alistair

'82 westy, diesel converted to gas in '94
http://www.members.shaw.ca/albell/

On 3-Jul-05, at 9:24 PM, Jim Felder wrote:

Maybe I misspoke by using the word efficient... I switched because I
couldn't keep the single belt from squealing, especially when the
fridge was running on 12v. I haven't had that problem since switching
to the 2 belt system.

Don't know about circulation or water temp, never had any complaints.

Jim