Hi,
Been living in current house for 2 years (built 1960's). I posted a couple of weeks ago with my system setup, couple of replies, outlining some major changes needed. Basically, I have a Floor Standing Ideal Mexico 2 Boiler (works), on a GRAVITY Feed system (don't know why it was not upgraded when the new Boiler was installed in 93), with F&E Tank, Cold Water Storage in loft (vented), Indirect Hot Water Cylinder in Airing cupboard (with jacket built-on from factory so guessing this is reasonable heat return but I don't think boiler is up to it, one pipe central heating - nice to balance, but keeps the house very warm quite quick . All works, but in house of 5 people, 3 females i.e. lots of baths, about to have side extension built with shower room in downstairs w.c., have to wait for water and when the extension happens the window of opportunity changes.
Feel its the best time to upgrade if we are going to, even though economies of scale suggest it won't pay for itself for around 15-20 years ! and plan the following:-
Change CH piping from one pipe copper to plastic two pipe hep2o, 22mm runs with 15mm breaks to each rad.
Change boiler from floor standing in outside boiler room to System Boiler in Airing cupboard (550mm width so just enough space).
Update current loft tank with new and have old safely removed. Stop using F&E too.
Have System Boiler change system to fully pumped with some changing of the current pipes.
Have Gas Man move gas pipes upstairs.
Ask builder to prep up MDPE as a new cold mains (currently around a 15mm lead pipe) then ask Water board to connect to lift the flow a little.
Use Weather Compensation to manage heating.
Poss use additional controller if setting within Airing cupboard is a hassle.
Change rads (some smaller than current install which was compensating for one pipe flow) and place TRV on all.
Would the Bath - Tail Rail be on the DHW or CH pipes ?
Add Power Shower Pump (would do two showers. One in bath, one in downstairs w.c.).
May update HW Clylinder to ensure quick recovery as don't know history of current cylinder.
Should then have a new fully pumped system on two pipe CH, quick recovery Hot Water via HW Cylinder (not pressurised as it won't fit where I would like it to be installed and I think it is too much at this stage, space for new cylinder is limited to 550mm).
I've drawn a basic diagram / schema of where, in my head things would go. Does this look OK ?
Basic Key
A - Rising Mains
B - 50G Cold Water Tank
C - Cold Feed down to DHW
D - 170L Indirect DHW Cylinder with Immersion
E - Cylinder Feed
F - Cylinder Feed
G - CH Feed
H - CH Feed
I - External Weather Compensation sensor
J - DHW Feed
K - Cold Mains pressure feed
L - Shower Feed
M - Shower Feed
N - Cold Feed
O - Bath
P - 3 bar ? Pump
Q - Thermostatic Power Shower
R - Vent
S - New Rads, approx 13 with TRV
T - System Boiler 26 to 28kW
U - Shower Feed
V - Shower Feed
W - Gas
X - Rising mains to be updated to 25mm
Y - Loft - should tank be raised ?
Z - Cylinder thermostat
The system would be on W plan, providing DHW first, then CH but hoping System Boiler will manage via Weather Comp.
System Boiler Flue to side and condensation pipes would back onto bathroom.
Sorry for the waffle. Comments would be welcomed about if the system looks OK. Clearly obvious detail missing like stop values, draincocks, flow etc but it was taking ages to draw as is !!
Thanks.
Been living in current house for 2 years (built 1960's). I posted a couple of weeks ago with my system setup, couple of replies, outlining some major changes needed. Basically, I have a Floor Standing Ideal Mexico 2 Boiler (works), on a GRAVITY Feed system (don't know why it was not upgraded when the new Boiler was installed in 93), with F&E Tank, Cold Water Storage in loft (vented), Indirect Hot Water Cylinder in Airing cupboard (with jacket built-on from factory so guessing this is reasonable heat return but I don't think boiler is up to it, one pipe central heating - nice to balance, but keeps the house very warm quite quick . All works, but in house of 5 people, 3 females i.e. lots of baths, about to have side extension built with shower room in downstairs w.c., have to wait for water and when the extension happens the window of opportunity changes.
Feel its the best time to upgrade if we are going to, even though economies of scale suggest it won't pay for itself for around 15-20 years ! and plan the following:-
Change CH piping from one pipe copper to plastic two pipe hep2o, 22mm runs with 15mm breaks to each rad.
Change boiler from floor standing in outside boiler room to System Boiler in Airing cupboard (550mm width so just enough space).
Update current loft tank with new and have old safely removed. Stop using F&E too.
Have System Boiler change system to fully pumped with some changing of the current pipes.
Have Gas Man move gas pipes upstairs.
Ask builder to prep up MDPE as a new cold mains (currently around a 15mm lead pipe) then ask Water board to connect to lift the flow a little.
Use Weather Compensation to manage heating.
Poss use additional controller if setting within Airing cupboard is a hassle.
Change rads (some smaller than current install which was compensating for one pipe flow) and place TRV on all.
Would the Bath - Tail Rail be on the DHW or CH pipes ?
Add Power Shower Pump (would do two showers. One in bath, one in downstairs w.c.).
May update HW Clylinder to ensure quick recovery as don't know history of current cylinder.
Should then have a new fully pumped system on two pipe CH, quick recovery Hot Water via HW Cylinder (not pressurised as it won't fit where I would like it to be installed and I think it is too much at this stage, space for new cylinder is limited to 550mm).
I've drawn a basic diagram / schema of where, in my head things would go. Does this look OK ?
Basic Key
A - Rising Mains
B - 50G Cold Water Tank
C - Cold Feed down to DHW
D - 170L Indirect DHW Cylinder with Immersion
E - Cylinder Feed
F - Cylinder Feed
G - CH Feed
H - CH Feed
I - External Weather Compensation sensor
J - DHW Feed
K - Cold Mains pressure feed
L - Shower Feed
M - Shower Feed
N - Cold Feed
O - Bath
P - 3 bar ? Pump
Q - Thermostatic Power Shower
R - Vent
S - New Rads, approx 13 with TRV
T - System Boiler 26 to 28kW
U - Shower Feed
V - Shower Feed
W - Gas
X - Rising mains to be updated to 25mm
Y - Loft - should tank be raised ?
Z - Cylinder thermostat
The system would be on W plan, providing DHW first, then CH but hoping System Boiler will manage via Weather Comp.
System Boiler Flue to side and condensation pipes would back onto bathroom.
Sorry for the waffle. Comments would be welcomed about if the system looks OK. Clearly obvious detail missing like stop values, draincocks, flow etc but it was taking ages to draw as is !!
Thanks.