Sometimes tinkering can make good things better. The blower fan upgrade on my outdoor wood boiler for space heating is a case in point. The stock fan that came with my Portage & Main 34-44 unit does a good job, but sometimes the boiler just seemed to need more air. Sometimes, but not always. That’s why I looked around for a variable speed fan that put out more air than the stock one, but could also be throttled back for those times when less air is more efficient. Click above to see the new fan and how I installed it.
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