“My boiler heating system was running even with thermostat removed. After finding the pipes to one zone hot and the other zones cold, deduced that it was this valve. Removed wires then, 2 screws, popped old valve off and screwed new valve on and rewired. No water drainage needed for my system. And this valve was a perfect fit for my old valve part# v8043f 1093.”
“First, I can't say much good about the product in light of the lack of success I've had with replacement heads over the past year. Out of the 3 purchased, only the last one functions as expected”
