D
deniance
hi everybody, ive joined this forum hoping to get some sound advice from you guys. i think i may have a heating problem or i might just be dreaming it up.....hopefully
you can help, ill try and give as much information as possible.... here goes...
ok first up the house, 100 year old 2 bed end terrace, built in solid stone 2ft thick, old double glazing all round, 300mm of loft insulation all over
secondly the heating system,11 year old ariston microgenus 23 mffi, mounted 1metre up, upstairs in bathroom, on an outside wall, this supplies 7 rads as listed below,
flow and return are 22mm and spread out from the boiler in a giant letter F, then rads are fed with short runs of 10mm microbore,
gas pipe is 22mm from the meter and goes direct to the boiler where it reduces down to 15mm 1metre from the boiler, there is a mixer shower also off the boiler
there is no room stat, also ive never had it serviced, boiler is set to economy mode which does away with the preheat i think?
bathroom
towel rail 600x1800 piped in 15mm on an internal wall, room size 2250x3660x2500, window size 1000x1600 , 2 external walls
bedroom
double rad 1200x300 microbore on an external wall, room size 3500x2900x2500, window size 1100x1300, 2 external walls
bedroom
double rad 800x600 microbore on an external wall, room size 2800x4800x2500, window size 900x1600 x 2, 2 external walls
living room
double rad 1600x600 microbore on an internal wall, room size 2700x4800x2500, window size 1860x2400 bay window, 2 external walls
porch
double rad 400x600 microbore on an external wall, room size 1400x1500x2500, window size 700x1000 new, door glass 600x900, 3 external walls
living room
double rad 1000x600 microbore on an internal wall, room size 2900x4800x2500, window size 1200x1900 2 external walls
kitchen
single rad 700x600 piped in 15mm on an external wall, room size 4000x 2200x2500, window size 600x800, door glass 550x1600 2 external walls
previous boiler work, about 5 years ago boiler failed and would not fire up, blokey came out and changed gas valve i think and powerflushed, added a bottle of cleaner
then came back and added inhibitor i think, cost me 500 quid but it was up and running again.
after he had left i noticed that the control knobs felt very used if you get me?, the on off one has definitely lost its click!!, also a year after he left the boiler started
humming/buzzing, the boiler loses a little bit of pressure every 6 mths or so, which i fill up with the filling loop, only thing is the filling loop drips from the valve handle when opened,
but it is worse today drips very very fast whilst filling the loop.towel rail gathers air at the top which ive bled today, this is the highest point in the system its
higher up than the boiler?
ok so on to the problem, well maybe.......
hot water works fine, nice and hot straight away
shower works fine nice and hot straight away
central heating works as it should, turn it to maximum from cold start, boiler fires up and the orange temperature leds light up and start to rise to 80 degrees?
all rads get hot quite quickly, then the boiler shuts off as it should, but ive noticed that it fires back up 10 seconds later, then runs for a few minutes then then off
this repeats and repeats, the boiler never goes into shutdown mode just keeps cycling, i dont know if this is the correct operation ??
also i feel that the system in general doesnt heat the house like it used too, its always cold, even when run at full i cannot get the rooms hotter than 18 degrees!!
i remember when it was switched on 11 years ago, it was boiling, never had heating on more than number two, but nowadays its definitely not as good
i have just completed some sealing and insulating work to the bathroom, which includes sealing ALL draughts, window,cracks, holes around pipes and skirting boards, insulated the attic to an obscene level above bathroom
i bled the towel rail and it is now full and piping hot, stuck 3 thermometers in there , been in there for 4 hours and room temp is currently 17.9 degrees at 65percent humidity(she just had a shower)
im convinced the system isnt performing like it used too.
when i bled all the rads today the water that was coming out was clean, maybe a little orangey but 90 percent clear
ive got a boiler engineer booked for friday the 5th, hes so far charging me 60 quid for a full service which seems too good to be true, he said i should add a room stat and set it to 20, but my rooms dont ever get to 20!!!
so i thought i would post here and get some good sound advice from the pros, what should i be asking him when he arrives and is there anything i can do to sort this problem out, i know it is completely my fault for not getting it serviced but nows the time for me to get it sorted and s
start learning the ins and outs of my system, how best to use it and care for it, any help at all is appreciated, and thanks for reading my really long boring post, many thanks danny
you can help, ill try and give as much information as possible.... here goes...
ok first up the house, 100 year old 2 bed end terrace, built in solid stone 2ft thick, old double glazing all round, 300mm of loft insulation all over
secondly the heating system,11 year old ariston microgenus 23 mffi, mounted 1metre up, upstairs in bathroom, on an outside wall, this supplies 7 rads as listed below,
flow and return are 22mm and spread out from the boiler in a giant letter F, then rads are fed with short runs of 10mm microbore,
gas pipe is 22mm from the meter and goes direct to the boiler where it reduces down to 15mm 1metre from the boiler, there is a mixer shower also off the boiler
there is no room stat, also ive never had it serviced, boiler is set to economy mode which does away with the preheat i think?
bathroom
towel rail 600x1800 piped in 15mm on an internal wall, room size 2250x3660x2500, window size 1000x1600 , 2 external walls
bedroom
double rad 1200x300 microbore on an external wall, room size 3500x2900x2500, window size 1100x1300, 2 external walls
bedroom
double rad 800x600 microbore on an external wall, room size 2800x4800x2500, window size 900x1600 x 2, 2 external walls
living room
double rad 1600x600 microbore on an internal wall, room size 2700x4800x2500, window size 1860x2400 bay window, 2 external walls
porch
double rad 400x600 microbore on an external wall, room size 1400x1500x2500, window size 700x1000 new, door glass 600x900, 3 external walls
living room
double rad 1000x600 microbore on an internal wall, room size 2900x4800x2500, window size 1200x1900 2 external walls
kitchen
single rad 700x600 piped in 15mm on an external wall, room size 4000x 2200x2500, window size 600x800, door glass 550x1600 2 external walls
previous boiler work, about 5 years ago boiler failed and would not fire up, blokey came out and changed gas valve i think and powerflushed, added a bottle of cleaner
then came back and added inhibitor i think, cost me 500 quid but it was up and running again.
after he had left i noticed that the control knobs felt very used if you get me?, the on off one has definitely lost its click!!, also a year after he left the boiler started
humming/buzzing, the boiler loses a little bit of pressure every 6 mths or so, which i fill up with the filling loop, only thing is the filling loop drips from the valve handle when opened,
but it is worse today drips very very fast whilst filling the loop.towel rail gathers air at the top which ive bled today, this is the highest point in the system its
higher up than the boiler?
ok so on to the problem, well maybe.......
hot water works fine, nice and hot straight away
shower works fine nice and hot straight away
central heating works as it should, turn it to maximum from cold start, boiler fires up and the orange temperature leds light up and start to rise to 80 degrees?
all rads get hot quite quickly, then the boiler shuts off as it should, but ive noticed that it fires back up 10 seconds later, then runs for a few minutes then then off
this repeats and repeats, the boiler never goes into shutdown mode just keeps cycling, i dont know if this is the correct operation ??
also i feel that the system in general doesnt heat the house like it used too, its always cold, even when run at full i cannot get the rooms hotter than 18 degrees!!
i remember when it was switched on 11 years ago, it was boiling, never had heating on more than number two, but nowadays its definitely not as good
i have just completed some sealing and insulating work to the bathroom, which includes sealing ALL draughts, window,cracks, holes around pipes and skirting boards, insulated the attic to an obscene level above bathroom
i bled the towel rail and it is now full and piping hot, stuck 3 thermometers in there , been in there for 4 hours and room temp is currently 17.9 degrees at 65percent humidity(she just had a shower)
im convinced the system isnt performing like it used too.
when i bled all the rads today the water that was coming out was clean, maybe a little orangey but 90 percent clear
ive got a boiler engineer booked for friday the 5th, hes so far charging me 60 quid for a full service which seems too good to be true, he said i should add a room stat and set it to 20, but my rooms dont ever get to 20!!!
so i thought i would post here and get some good sound advice from the pros, what should i be asking him when he arrives and is there anything i can do to sort this problem out, i know it is completely my fault for not getting it serviced but nows the time for me to get it sorted and s
start learning the ins and outs of my system, how best to use it and care for it, any help at all is appreciated, and thanks for reading my really long boring post, many thanks danny
which is the best part of the world 
