Exactly what I did for a heater in my homemade cab. 3/8" hoses run back to the heater where mounted was all that was necessary for enough water flow. How much heat will the heater put out? see Post 15Any reason this wouldn't work?
Redirect hose from thermostat to the heater and run the return back to the water pump.
I 'll add shut offs to bypass the heater in the summer and run the coolant from the thermostat directly back to the water pump.
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5/8" Hose Barb Y Type 3 Way Brass Cut-Off Ball Valve 2 Switch with Clamps | eBaynow that's neet ! got a 'link' for them ??
I'm glad I live on a CDN/U.S border.thanks ! Amazon.ca want $57 CDN for it !!!!