You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
filling loop
In Riemannian geometry, the filling radius of a Riemannian manifold X is a metric invariant of X. It was originally introduced in 1983 by Mikhail Gromov, who used it to prove his systolic inequality for essential manifolds, vastly generalizing Loewner's torus inequality and Pu's inequality for the real projective plane, and creating systolic geometry in its modern form.
The filling radius of a simple loop C in the plane is defined as the largest radius, R > 0, of a circle that fits inside C:
Dear Forum
I have a combi system and need to flush the system. I have filled it with sludge remover via a radiator dosing point and now need to flush it out.
I am looking for the best way to do this, in terms of connections etc, and understand that I can do this by connecting a hose to the...
dandw
Thread
boiler
combi
combi boiler
connections
drain
fillingfillingloop
flush
hose
oil
radiator
sludge
system
through
valve
an internet company who wont provide you with a phone number? i did some digging and found a mobile number registered to this company and there was no answer. they have 3 different web sites , boilers , showers and solar heating and none of these sites provide a tel number in the contact use...
that bloke.
Thread
boiler
boilers
buy
central heating system
fillingloop
funny
high
internet
mobile
oil
power
problem
rules
showers
solar
solar heating
stock
web
Can anyone help me?
I don't generally do a huge amount of central heating repairs but i've been to look at a job today for a landlord I do a fair bit of work for.
He has a leaking pump valve, pump is on it's way out as well and want's a radiator replaced, all fairly simple so far. Here's the...
about
boiler
central heating system
combi
connect
couple
expansion
expansion vessel
ferroli
fillingloop
fix
header
header tank
loft
pressure
pump
questions
radiator
replacement
system
tank
unvented
valve
vessel
wall
Does anyone know of any problems with the main heat exchangers on this vailant been to brother inlaws losing about a bar over night with no signs of a leak I have pulled the burner out and there is quite a bit of rust in the condense sump spoke to vailant and they say it should not have that...
fireblade
Thread
bar
boiler
burner
central heating system
eco
expansion
expansion vessel
fillingloop
flow
job
leak
plus
pressure
problem
pump
safe
safety
safety valve
system
vailant
vaillant
valve
vessel
water
worcester
Need to move 10mm rad pipes tomorrow, ive taken the rad off but now need to repostion it, its a combi boiler.
what would be the best way to go about this? is it true that with combi's i dont have to drain the whole system down? just that pipe run???
am i correct in thinking that i would need to...
double d
Thread
10mm
another
boiler
combi
combi boiler
drain
fillingloop
mains
pipes
pressure
problem
prv
question
safe
safety
safety valve
seal
system
valve
vent
Hello all
I have a small 1 bedroom flat that currently has elec storage heaters. im not happy with them as they are expensive and dont have the effect as the heating in my previous flat (gas central heating)
My question is, if i fit alll the radiators and pipework (water only not gas) and also...
Cravenbiker
Thread
boiler
boilers
building
building regs
central
central heating system
circulation
copper
diy
fillingloop
fitting
heating system
hose
hot
install
job
pipe
pressure
problem
system
test
work
Hung + piped up about 9 or 10 with guys I work with but not done any on my own. And watched + helped draining CH systems and filling back up but again, never done on my own.
Got a job to quote this week. Swap a rad for a towel rad and move the original one upstairs to room above (where there...
I have a icos ideal boiler in a new house plumbed with 10mm flexi hose, i have removed a radiator and capped the ends but now my boiler wont fire up and the pump/motor in the airing cupboard is getting really hot and making a noise, by doing this have i stopped the continual water flow or...
spander
Thread
10mm
air
bar
bleed
bleeding
boiler
boilers
expansion
fillingloop
flow
hose
hot
icos
ideal
noise
pipes
pressure
problem
pump
radiator
screw
tank
valves
water
work
Hi, I'm trying to solve a problem with a boiler for a customer, which I can't even establish the model number of.
There is no model number stamped on the boiler, and the customer has lost all documentation, so here is what I do know about the boiler. It is a condensing combi boiler which I...
Ultimate
Thread
basin
bath
bath taps
boiler
boilers
cold
combi
fillingloop
flow
gas
gas safe
hot
hot water
issue
lockout
oil
plumbing
problem
safe
shower
sink
taps
water
worcester
worcester boiler
work
Hi all,
Hope someone can help me.
I have a Greenstar 28 Worcester
Both the hot water and heating work ok.
The problem is I have a running water noise through the water inlet valve. When I shut the water inlet valve off, the noise stops. There is sign of leaks anywhere that I can see or...
burnsburger
Thread
boiler
central heating system
fillingloop
greenstar
hot
hot water
leak
leaks
noise
pressure
problem
seal
system
valve
water
worcester
work
Worcester 28i rsf combi
pressure has dropped below 1 bar, heating has stopped working but hot water ok, what do I need to do to get the heating going again and pressure back up? thanks
lunno55
Thread
bar
combi
fillingloop
heating
hot
hot water
mains
no heating
plug
reset
supply
switch
tap
water
worcester
Hi To All,
I know this may sound ridiculous and please forgive me if it is!! All the pipe work to my combi boiler has been hidden behind panelling - including the filling loop!!! I could move the loop and make it more accessible but I was wondering if I used a water inlet valve from a washing...
Anyone know how to stop the pressure from going up and then going to lock out on this potterton powermax HE boiler? It has a error message of E 0.1
Any suggestions grateful.
The pressure gauge cuts out at 4.
Steve100
Thread
bar
boiler
check valve
cold
error
expansion
expansion vessel
fillingloop
help
high
install
oil
pipe
potterton
powermax
pressure
problem
problems
system
valve
vessel
work
I've got a potterton boiler which has been no end of trouble! The pressure gadge is up to 4 and it cuts off probably for safety reasons. I have bled the radiators, and released the water from the flexible pipe attached to the two vavles.#
Just checked it again after all that and now the...
Steve100
Thread
boiler
error
expansion
expansion vessel
fillingloop
flexible
help
high
manual
oil
pipe
potterton
pressure
radiators
safe
safety
valve
vessel
water
Rank amateur. Removed rad for decorating. Replaced rad. Refilled system. No heating and no hot water. Advised to redrain system and refill. Have drained system but now cannot fill. When I open what I believe is inl;et tap no water goes into tank.
No expansion tank in loft or in airing...
plumrob
Thread
air
blockage
boiler
building
central heating system
cold
cylinder
drain
expansion
expansion vessel
fillingloop
find
hose
inside
mains
pipe
pressure
radiators
seal
sealed
system
tank
vent
vessel
water
We had a brand new central heating system installed with a combi boiler (worcester bosch) installed just over a year ago.
It was working perfectly.
And then we had some building work done which involved moving one of the radiators to a different wall.
After the radiator was moved, I...
mamaleelee
Thread
bar
bar pressure
bleed
bleeding
boiler
building
central heating system
combi
combi boiler
fillingloop
insurance
leak
oil
pipe
plumber
pressure
problem
radiator
radiators
sealed
system
tap
vent
work
prv faulty so going to replace that, pressure low, but when i run the hot tap, the pressure goes up slightly? turn it off drops again.
any ideas. dhw heat exchanger passing?
its my mum and dads boiler and i will be replacing in the summer or autumn but could do with it lasting a bit longer
moony
Thread
baxi
boiler
cheap
dhw
dropping
eco
expansion
expansion vessel
fillingloop
hot
parts
passing
pressure
pump
tap
vessel
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.