The first heat muff didn't work. There is too much cold air going through the muff without heating up. To see the first heat muff, see Engine log entry on 2-24-13. So I'm trying a new design:
- Same size box - Made of stainless steel instead of aluminum - Easier to put on and take off, being built in two sections - In and Out holes are much smaller to try to slow down the air - I will add more stainless springs wrapped around the exhaust pipe to create a baffle effect, and to provide more surface area for heating.
Pattern for 1/2 of heat muff
The other half made, with the in/out collars riveted in place.
In/out holes are much smaller than the first heater box.
