Hi All,
Early last year i started a thread about replacing COMBI boiler, since that thread, we decided to move house and so never replaced the boiler, as luck would have it i flushed the system again and all was well.
Anyway, a year since moving into the new house and we have problems with the boiler of this house (a system boiler with Y plan setup), consistent over pressurisation resulting in the relief valve opening, o ring leaks, system has never had steady pressure and i'm constantly topping it up every week.
I'm going to make it last the winter and replace it spring/summer time.
I wish to keep my setup as a system boiler as we have got used to being able to use more than 1 tap at a time, and its nice having a shower and someone else able to run water elsewhere in the house at the same time.
Whilst the new boiler is being installed i wish to have a couple of design flaws rectified (expansion vessel installed on flow pipe before 3 way valve, and system filter installed on CH flow after 3 way valve instead of return pipe) there is reasons as to why these have been installed this way due to space, but in installing a new boiler (located in garage) i can have these rectified. I also wish to do away with the old dial thermostat and honeywell st699 so i have more control over the boiler rather than just 2x set times.
Now having read up, i quite fancy having fully opentherm controls, but the opentherm appears to severely restrict my options in terms of boiler and controllers.
Having done a bit of reading it appears the intergas with the honeywell evohome with the hot water opentherm sensor aswell as an external temp sensor is really my only option to be fully opentherm.
I like the idea of the evohome, it would certainly help in my sons room, that is exposed on 3 sides with a low pitch roof and gets quite cold at night in the depths of winter.
However my concern is the wireless protocol on the evohome is not completely reliable, and its quite old now, so surely its not going to be long until its made obsolete.
in terms of boiler i'm thinking of the intergas HRE 24s, but this and the evohome is rather quite expensive at around £3k inc evohome without fitting.
so i have looked at alternative boilers all with 10 year warranties
I can get an ATAG boiler installed for circa £1700 + cost of evohome
There is also the option of the BAXI 824 system boiler similar cost same as above
or
Ferroli BlueHelix RRT 24S for about £1500 also with 10 year warranty + evohome
anyway the actual question is:
are these my only options, and is the opentherm feature worthwhile?
i'VE got one chance to do it, and i want to get it right and hopefully future proof a little bit. If its got to be £3+k then thats what its got to be.
Early last year i started a thread about replacing COMBI boiler, since that thread, we decided to move house and so never replaced the boiler, as luck would have it i flushed the system again and all was well.
Anyway, a year since moving into the new house and we have problems with the boiler of this house (a system boiler with Y plan setup), consistent over pressurisation resulting in the relief valve opening, o ring leaks, system has never had steady pressure and i'm constantly topping it up every week.
I'm going to make it last the winter and replace it spring/summer time.
I wish to keep my setup as a system boiler as we have got used to being able to use more than 1 tap at a time, and its nice having a shower and someone else able to run water elsewhere in the house at the same time.
Whilst the new boiler is being installed i wish to have a couple of design flaws rectified (expansion vessel installed on flow pipe before 3 way valve, and system filter installed on CH flow after 3 way valve instead of return pipe) there is reasons as to why these have been installed this way due to space, but in installing a new boiler (located in garage) i can have these rectified. I also wish to do away with the old dial thermostat and honeywell st699 so i have more control over the boiler rather than just 2x set times.
Now having read up, i quite fancy having fully opentherm controls, but the opentherm appears to severely restrict my options in terms of boiler and controllers.
Having done a bit of reading it appears the intergas with the honeywell evohome with the hot water opentherm sensor aswell as an external temp sensor is really my only option to be fully opentherm.
I like the idea of the evohome, it would certainly help in my sons room, that is exposed on 3 sides with a low pitch roof and gets quite cold at night in the depths of winter.
However my concern is the wireless protocol on the evohome is not completely reliable, and its quite old now, so surely its not going to be long until its made obsolete.
in terms of boiler i'm thinking of the intergas HRE 24s, but this and the evohome is rather quite expensive at around £3k inc evohome without fitting.
so i have looked at alternative boilers all with 10 year warranties
I can get an ATAG boiler installed for circa £1700 + cost of evohome
There is also the option of the BAXI 824 system boiler similar cost same as above
or
Ferroli BlueHelix RRT 24S for about £1500 also with 10 year warranty + evohome
anyway the actual question is:
are these my only options, and is the opentherm feature worthwhile?
i'VE got one chance to do it, and i want to get it right and hopefully future proof a little bit. If its got to be £3+k then thats what its got to be.