mid 80s grundfos ups20-42 still running, quiet as day 1 it's been running 24/7 as a DHW recirc pump, no strainer.. that's about 280,000 hours of uptime 2016-11-28 15.09.48.jpg 5.5M 0

I have a recently installed hydronic floor heating system with two Grundfos UPS15-58FC circulating pumps. They are variable speed (3) and one is set to HI and one set to LO. Seems …

Forget the B&G pumps, give me the Grundfoss equivilent, I'll repipe it and forget about it. This is about the 4th time in the last couple years something similiar has happened, I'm done. If they …

Grundfos recirc pump While the Grundfos recirc pump does not affect most 3/4" systems, a small amount of restriction will result when the pump is off. A by-pass, with a check valve, can easily …

There ain't no cartridge in a Grundfos pump. Sound like the pump is running dry. Remove the screw on the end of the pump with a screwdriver and see if water comes out. That is an old …

3.1K A-C, Heat Pumps & Refrigeration; 54 Biomass; 423 Carbon Monoxide Awareness; 98 Chimneys & Flues; 2K Domestic Hot Water; 5.5K Gas Heating; 101 Geothermal; 157 Indoor …

3.1K A-C, Heat Pumps & Refrigeration; 54 Biomass; 423 Carbon Monoxide Awareness; 97 Chimneys & Flues; 2K Domestic Hot Water; 5.5K Gas Heating; 101 Geothermal; 157 Indoor …

There is a differential bipass valve in the system--I was reading about ECM's last night--one would be great on this system---hopefully someone can make a recommendation for a size that …

2003年12月1日 · There's thirty circulators here in the basement for the radiant floors,supplemental heat,primary and boiler pumps, two dhw tanks, and five more up on the …

Hi Has anyone installed a tankless gas water heater (NORITZ, RINNAI OT TAKAGI) with a GRUNDFOS Comfort Pump System model UP15-10SU7P/TLC (grundfos pump with comfort …