From the United States of America? - Checkout our specific plumbing forum for you:USA Plumbing Forum

Discuss Moving house - UFH fun in the Water Underfloor Heating Installations area at

Bulk Workwear - Workmans Clothing and Protective Gear
This official sponsor may provide discounts for members
Not open for further replies.
Hi All
I have recently moved house and this new house has underfloor heating in the kitchen. now i know the house has been renovated and has been empty for perhaps a year.
What i have noticed is that the underfloor heating is luke warm at best. i know it runs from the boiler. i checked under the boiler and noticed the pump was switched off. this ive turned back on but have not really noticed a difference.
however i have noticed some adjustable valves under the boiler and wondered if anyone knew what they maybe for?


Staff member
S. Mod
Gas Engineer
TBH that doesn't look right to me, doesn't look like there's any manifold

It's nothing in the second pic that's for your cylinder/ hot water system

@Uheat – Jake

Uheat – Jake

Official Sponsor
The first picture appears to show a single loop control pack, this is just used for one single zone only of 25m2 and under. The single section at the top should be for the flow to the pipe however is normally mounted downwards, but can be rotated as long as the pump is circulating the correct way.

The second image appears to show a mixing valve as well, if its for the same system as picture one then I'm not to sure why he's added it in for as it's not needed. And picture three seems to be a preasure reducing valve.
the kitchen is approx 21m2 so I think it is just a single zone. is it worth me trying to adjust the mixer at the bottom of the pump?
also should the pump be fairly silent or have a noticeable noise when in use?
CorgiDirect - Discounted Corgi Related Documentation and Plumbing Supplies
This official sponsor may provide discounts for members

Uheat – Jake

Official Sponsor
You could adjust the mixer and change the temperature but if it's below 40 degrees then the pump wouldn't spin anyway as they have a built in temperature switch. The pump should be quiet but should have a notable spinning noise when in use.
Not open for further replies.

Reply to Moving house - UFH fun in the Water Underfloor Heating Installations area at Plumbing questions, answers, tips and tricks.

Plumbing and Plumbers

Plumbing Workwear

Shower Power Booster

Plumbase Spares - Plumbing Supplies and Spare Parts

Water Underfloor Heating

CORGI Direct for Plumbers

The Wetroom Store

Plumbase Spares

New Posts Threads Members