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Recommendations for simple small Variable speed ECM Pump?

Need a small ECM pump for my home system....around 5.5 gpm @ 2.5 ft. hd.. probably just a simple variable speed pump should work that I can just dial in the flow. A long time ago I beta tested the B&G variable speed ECM pump and I remember running about 9 watts for the pump in the system for my old house that was very similar in needs as my current system.
I plan on making this my test bed for a direct comparison of a steam system vs hot water system to compare fuel and electricity usage using an identical system, building and boiler. The piping is set up for use as a two pipe steam system or two pipe hot water system. I will probably use a Peerless 63-03L boiler, unless I can find a good steamer at around 60,000 btu/hr input.
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