If there are similarities between the L3200 and B2601 plumbing, there's no need to cut anything. Somewhere I posted info on the heater I installed in a DIY cab I started near the end of 2012. I ran the heater using the thermostat bypass. In the attached pics you can see the tie-in.
There was a little rubber elbow that went from the block to the t-stat housing. The two ends were different sizes. The end that connected to the t-stat housing was the same size as the heater inlet/outlet pipes. Simple matter to loosen the hose clamps, pull the end off of the t-stat housing and rotate the rubber elbow to clear stuff.
One heater hose was connected to the rubber elbow via an internal coupling, and the other heater hose went to the t-stat housing. The flow was controlled with 3 valves. Two near the heater (one in supply and one in return) and one between those and the engine so that when flow to the heater was shut off, the third valve was the bypass. NOTE that flow in this line must be maintained, either through the heater or this bypass valve.
HEATER
20,000 BTU AUXILIARY HEATER- 9 1/2 X 6 1/2 X 7- 12 VOLT. 12V 20,000 BTU HEATER HAS THROUGH THE FLOOR CONNECTIONS & BOLT TO THE FLOOR MOUNING FOR HEAVY DUTY, SAFE OPERATION. OVERALL DEPTH: 7.
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CAB BUILD
Much of the time I enjoy the open air and nothing around me. Then there are those times when my feet and fingers are freezing and it isn't that much fun anymore. After reading about numerous homebrew cabs I decided it was probably something I could handle. What I need is some guidance /...
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