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condensation
Condensation is the change of the state of matter from the gas phase into the liquid phase, and is the reverse of vaporization. The word most often refers to the water cycle. It can also be defined as the change in the state of water vapor to liquid water when in contact with a liquid or solid surface or cloud condensation nuclei within the atmosphere. When the transition happens from the gaseous phase into the solid phase directly, the change is called deposition.
I have anOil fired boiler that serves the underfloor heating system and the upstair radiator system.We recently notices thatthe expansion vessel was regestering a drop in pressure and subsequently our local plumber replaced like with like.Next day same loss of pressure.He returned and re...
heighter
Thread
air
boiler
central heating system
condensation
connections
cylinder
damage
expansion
find
leak
local plumber
megaflow
no water
pipe
plumber
pressure
problem
pump
radiator
system
tank
test
underfloor
valve
vessel
water
hi,
i really dont know anything about boilers so need some DIY help. its a Selectos oil burner type 42/A basically what is happening i ran out of oil then got it in today now the boiler is not working.. when i turn it on it seems to be turning over and not kicking in.. i can hear it begin to...
have not a clue
Thread
bleed
boiler
burner
button
condensation
element
filter
flow
free
hose
inside
kitchen
manual
oil
pipe
pressure
problem
pump
tank
tap
valves
water
Just been out to see a customer today with a leaky roof. I have the following secnario:
At the front of the building is a foyer approx 5m x 7m with a flat roof and a timber framed glass skylight canopy in the centre. The flat roof consists of lead bays forming a rectangle with the canopy in...
Hi All
Symptom : boiler locked out
I reset boiler and tried to restart calling for heating
sounds as though the fan is running but no ignition sequence
reset and tried calling for dhw
again sounds as though fan is running but still no ignition
reset again and removed vacuum pipe from fan...
derrybongo
Thread
boiler
code
combi
compact
condensation
connections
glow worm
hose
installation
job
leak
merchants
noise
pipe
power
price
problem
reset
supply
switch
tee
test
van
vokera
vokera compact
work
Hello
Could anyone please shed light on how in a domestic property with a new unvented cylinder fitted with no pipe crossovers would occasionally run hot water from the cold taps, I know i could fit a non return valve on the cold feed but i was just wondering why this would happen.
Would be...
stuartj
Thread
boiler
central heating system
cold
cold water
condensation
cylinder
flow
head
hot
hot water
insulation
pipe
pipes
plumber
plumbing
problem
pump
supply
system
tap
taps
unvented
valve
water
got a toilet that gets a lot of condensation on the cistern and it suffers quite bad from it question is what is the cause of the problem and how can i cure it.
pauls
Thread
air
bathroom
central
central heating
cistern
cold
combi
condensation
heating
hot
insulation
loft
mains
plumber
plumbers
problem
remove
shower
tiles
toilet
valve
water
work
Hi All
I am a DIYer and today I have been lagging pipes ready for the winter , can anyone tell me should gravity feed and expansion pipes be lagged ?
Thanks
Ray
RayWhite
Thread
ceiling
cistern
condensation
cylinder
efficiency
expansion
fitting
gravity
hot
hot water
hot water cylinder
lagging
law
overflow
pipes
plumber
screen
tank
wall
water
winter
Hi everybody,
I am in the process of replacing my old fired Rayburn with a solid fuel boiler stove. I will obviously need to alter the control system as there is no way to control the stove temp other than by closing dampers etc.
I have used much of the existing plumbing arrangement - gravity...
Roman
Thread
boiler
central
central heating system
circulation
cold
cold water
combi
condensation
cylinder
flow
gravity
indirect
pipe
plumbing
pump
radiator
rayburn
stats
tee
temperature
timer
valves
water
I had a call about a directly heated hot water cylinder,
The set up is in a retirement flat, the lady had gone away for about 4 days and got home, the carpet was a bit wet.
The son went round and turned off the hot water emptied the taps but not drained the cylinder. I went round the...
secret squirrel
Thread
air
bathroom
can't
cistern
condensation
cylinder
difficult
expansion
find
fix
heater
heating
hot
hot water
hot water cylinder
job
kitchen
leak
overflow
problem
sealed
tank
taps
water
Hi,
I am getting a new condenser combi boiler fitted and have had a few quotes.
As I understand it, (and I admit am not very knowledgable in these matters!), apart from the water pipes, the boiler itself needs a flue, an outlet for condensation, and an pressure outlet.
The ideal position for...
Vox
Thread
bathroom
boiler
cheap
combi
combi boiler
condensate
condensation
condensing
copper
cylinder
gas
high
job
main
oil
pipe
pipes
plumber
pressure
problem
question
sink
wall
waste
water
water pipes
The heat carrying capacity of copper pipe BS EN 1057 is
15mm = 10kW with a temperature drop of 11C and a velocity of 1.5m/s.
22mm = 22.14kW
It also varies with velocity the faster the more kW but usually 1.5m/s is the maximum and 0.3m/s the minimum.
But at 0.3m/s its
15mm = 2kW
22mm...
Bernie2
Thread
22mm
boiler
building
central
central heating system
combi
condensation
copper
fitting
flow
google
heat
heat loss
inside
pipe
pipes
problem
supply
system
temperature
tips
work
Hi. Ideal 'Icos HE15', I was told by a plumber of many years experience, that my boiler would not work in condensing mode unless the the rotary heat setting control was left fully clockwise (max or 5?). I have recently been told that condensing mode is operating also at any lower setting. Would...
Jaded
Thread
boiler
boilers
central heating system
cold
cold weather
condensate
condensation
condensing
control
flow
high
hot
hot water
icos
inside
noise
plumber
radiator
secondary
temperature
water
work
When fitting a bath or basin I have always piped the hot water to the left.
Its what I was trained to do and have never been challenged on it ....until now. Customer claims that the hot should be on the right,hey the customer is always right, right? So I try to find some evidence that the cold...
wilyam44
Thread
basin
bath
bathroom
cistern
cold
condensation
hot
industry
job
kitchen
mixer tap
mixers
pipes
plumbing
position
school
shower
showers
tap
taps
training
water
work
Hi all, I have recently fitted a new bathroom suite for a customer and sited the thermostatic shower on the shared wall with next door. The bathroom pre fitting was an absolute disgrace with cracked tiles, mildew and a leaking bath. 8 months later I have received a call from the customer saying...
gertygumdrops
Thread
air
bathroom
circulation
cold
condensation
damp
fitting
flush
hot
leak
pipe
problem
shower
showers
thermostatic
tiles
wall
ive just had a combi boiler fitted and a pipe runs through the kitchen wall from the boiler to outside, i presume an overflow for condensation (?), and it runs down the wall to the ground where the plumber has excavated my tarmac drive and created a small soakaway.
(i) Is this the done thing...
b1956
Thread
boiler
building
combi
combi boiler
condensate
condensate pipe
condensation
copper
drain
gas
gas safe
kitchen
oil
overflow
overflow pipe
pipe
pipes
plumber
problem
regarding
soakaway
trap
wall
wide
Just fitted an air conditioning unit to the bedroom.
(Yes the 1.5 days of sunshine prompted me to part with £250 at B&Q for one)
But the external pipework is looking a bit of an eyesore...
Inside I have squirted "No more big gaps" into the 80mm hole. Then re-papered.
But now my outside...
365drills
Thread
365drills
air
bargain
ceiling
coloured
condensate
condensation
copper
downpipe
drain
drills
external
fitted
fitting
gas
gravity
loft
looks
noise
pipes
pipework
plug
screw
system
trap
wall
water
Need advise I have 30CD Worcester conventional gas fired boiler around year old problem with boiler is fanny noise which is coming from flue!
Anyone had that before, please advise!
Thanks!
jakebabich
Thread
boiler
condensate
condensation
gas
glow worm
impeller
inside
install
installers
leak
noise
pressure
problem
tee
test
trap
waste
water
worcester
Hi folks,
Any ideas on how I can stop constant heavy condensation on a toilet cistern - so much that the floor under the cistern is constantly wet. The toilet unit is a bog standard (pardon the pun) close coupled toilet, water supply off the rising main. Fairly good ventilation as the door is...
dajome
Thread
bath
bathroom
cistern
cold
combi
condensation
hot
inside
insulation
mains
oil
paint
pipe
pipes
problem
radiator
shower
supply
tap
toilet
water
winter
work
A bit of an odd one this....
My wife and I don't like it hot so have set the thermostat in the hall to 16 so it is about 17 to 19 around the house. We were concerned that this wouldn't let enough heat get up to the cold water & central heating tank in the loft so I added so extra insulation...
John Widger
Thread
central
central heating
cold
cold water
cold water tank
condensation
dripping
header
header tank
heating
hot
inside
insulation
local plumber
loft
overflow
overflow pipe
overflowing
pipe
plumber
problem
remove
tank
valve
water
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