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Recent install Firebird 26kw Condensing boiler. Space heat only. Installed as replacement boiler in well insulated 80s renovated home. (Silver bead wall cavities, triple glazing 0.6 centre pane U value, 450mm rockwool in loft) This house is now split into 2no zones. Downstairs and Upstairs...
Hi All,
Last night i discovered my Worcester 35CDi II was leaking, I had a new expansion vessel fitted in may as the old one had failed along with a new PRV.
I think it is probably about time to replace the boiler given it was installed when the house was built in 2002 so is approaching 20...
Hi there
Could someone please advise what size condensing boiler I would need to run the following all at once.
225m2 of underfloor heating
( calculates on length x width of rooms)
8 Rads at 1470 watts each
2 Rads at 1.176 watts each
4 Towel Rails at 200 each watts
DHW at 3000 watts...
Hello,
Around 2 years ago we had a very old, leaky Baxi combi replaced with a newer Baxi.
For background I live in a 3 storey terrace. First floor has 3 rads, second floor has 4 rads and third floor has 2 rads.
We noticed problems with noise and air in the system. One of the rads in the loft...
Happy New Year.
Okay, maybe the subject is a little dramatic, but hopefully I've got your attention for a few minutes 😀
After a recent upgrade of my CH system, which included a LLH and a new circulation pump, my trusty old Vaillant ecoTEC 637 Plus system boiler seems to be spending a lot of...
I am about to replace my radiators (and piping) and doing the heat loss calculations. I am wondering if the T50 rating on radiators is still reasonable. Wouldn't T40 be more efficient with today's boilers, or would the difference be hardly noticeably?
I guess T40 would also be at the upper...
My house is a 1970s build fairly well insulted detached 2 storey. Split in 2no zones which are controlled independently with digital thermostats and rarely run at the same time.
Downstairs has 9 double rads and 5 single rads.
Upstairs has 5 double rads and 1 single rad.
Open vent system std...
I am a retired Chartered Electrical Engineer and am looking for information about the necessary conditions for gravity primary circulation in a 28mm domestic indirect vented hot water circuit.
Until recently I have fitted Hercal cylinders in my house and they always worked without any...
Wondering if someone can answer my queries. We have a firebird C35, downsized to 26kw condensing boiler. 2 Ufh manifolds and rads. When the boiler runs the rads and manifold 50m from boiler the boiler runs perfectly. When the boiler runs the closest manifold 15 m away from boiler heating approx...
Hi
for a few reasons (problem with hot water, possible smart heating installation), I familiarised myself with my heating system and wiring. Looks like a standard S-Plan with magnetic valves for hot water, central heating and UFH. Valves are controlled by normal standard backplate programmer...
I enjoy a pint at my local pub/restaurant owned by a hardworking Chinese family. I have had many years experience on property maintenance and they asked for my help.
He had an old LPG gas boiler feeding a Santon Premier unvented cylinder feeding 23 radiators and hot water for the kitchen. New...
Hello!
I have a large house, 20 radiators + UFH. Heated house area is about 350 m2. House is class B, it is written in the certificate that house requires 73 kWh(m2/year) for heating. I had my system fully upgraded last year, installed new Vitodens 200-W 49 kW (B2HA) model with Vitotronic 200...
HI everyone,
installed new ideal heat only boiler in replacement for dead potterton suprima, flushed system when boiler fitted, s plan system with bypass in working order, all works ok until circuits shut off then boiler over heats. pump overrun not provided on ideal logic and pump in airing...
Heating issues. Had new water pump fitted 3 weeks ago, new 3 port valve 18 months ago, boiler is 4 years old. I balanced radiators when new pump was installed and for 2 weeks or so the heating and hot water worked a treat. 3 days ago, woke up to find neither working properly. Timer comes on...
- Question
Hello. I have a Vaillant EcoFit boiler that is a few years old. We had our annual service last month and ever since then I’ve noticed something unusual.
The radiator mode temperature is set to 65C but it always exceeds that, hits 70C, and then stops and the the egg timer comes on. If I check...
Hi
I have a leak from one of the pipes, going into the hot water cylinder, in the airing cupboard. There are 2 pipes going into the cylinder on the left hand side, (I think it is called a vented cylinder - colder water tank in loft) and it is the top pipe which is leaking, (the one with yellow...
Hi All
We have an oil fired Boiler, Tank in the loft and Hot Water tank in the airing cupboard with a Honeywell ST9400A control and HCW80 and HC60NG remote thermostat.
For a while the Hot Water was not coming on. We had to fire up the Heating if we needed Hot Water.
I swapped the motorised head...
Hi All,
On Thursday there was a water leake a few steets away from us And we had no water most of the day.
About 10 minutes before my neigbour said the water supply was back on I remember hearing a fair amount of activity from our airing cupboard. I took this as water/air moving through as the...
Hi everyone,
I have a customer who needs a new system boiler, currently has a 22kw which I've roughly calculated as enough heat output for the heating (its a 6 bed victorian terrace house), but this doesn't take the 200l unvented cylinder demand into account. Currently the system is setup on S...
Hi all
Wondering if you could help with this strange issue.
I have a Vaillant ecotec 637 (set to 20kw part load) which was connected via a LLH to my system of 3 zones; DHW and 2 radiator zones. The gas usage was high and didn’t feel the boiler was modulating, so yesterday I decided to remove...
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