As above for you heating experts. Our one has just about had it now and is 26 years old so I'm not spending any more on it.

It's a potterton profile 60 and it's a heat only boiler. Absolutely everything in the system has recently been replaced/modernised/updated so just looking for a like for like replacement. The fitter that did work on the rest of the system a few months ago (converting to a sealed system, unvented hot water tank, power flush, new zone valves, digital programmer and thermostat) said at the time that when the 60,000 BTU boiler needed replacing, we could get away with a smaller one as they are much more efficient these days. Is that right? What would you recommend and why? Presumably I'd need a magnetic filter fitting too? Past: FL2 TD4 HSE Auto
Evoque SD4 Dynamic Lux Auto
Present: Audi A3 S Line.

Can't go wrong with a Worcester Bosch. Not the cheapest but the best.

Just picked up question regarding boiler size.
Theoretically when changing from a conventional boiler to a condensing boiler you should put a slightly smaller boiler in. Reason being the boiler will only condence i.e. work at peak efficiency when working at maximum rate. Once it modulates down it no longer condenses. Therefore a boiler sized at 80 percent of the total house requirement would be sufficient.
The down side is that this leaves no room for expanding the system.
Personally I would go for like for like sizing.In your case 18kw. But that's just me  Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

Last edited by gasman on 26th Feb 2017 1:35 pm. Edited 2 times in total

As above. Worcester or Valiant.

But I would go with Worcester. Freelander 2 LE Sport - Largo Grey
Nissan 350Z
Toyota MR2 Roadster

Sold - Alfa GTV 3.0 V6 - missed dearly

Steve D wrote:

said at the time that when the 60,000 BTU boiler needed replacing, we could get away with a smaller one as they are much more efficient these days.

Recently had an ATAG boiler fitted, way quieter than Worcester and full of metal fittings, not a plastic one in site. Same guarantee as the Worcester offering, worth a look.

Is that a new boiler or replacing an old boiler. Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Last edited by Lightwater on 26th Feb 2017 2:27 pm. Edited 1 time in total

Ideal logic best boiler out there fit loads every year,never let me down. Freelander2 GS TD4 Manual in Lago Grey .Roof Mount DVD 9.2''Screen~Window Tints~Parrot CK3100 Bluetooth~Retro Fit Sony Satnav~iPhone Dashmount~Side Steps~Woodco Armrest~Mudflaps~Land Rover Sunglass Holder~LED Interior Lights~Private Plate.Evoque Collected 17th Sept 2012.


Also Audi TT Roadster.

monkeybrain1234 wrote:

As above. Worcester or Valiant.

But I would go with Worcester.

Funny that I would not install a Worcester even if you gave it me FOC!
Valiant every time.

Bill Life Honorary Member of Wallasey Motor Club.
Licenced MSA Radio Operator for 35+ years.
Rallying is the only sport.

Valiant were good, gone down hill a bit recently. Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

taztastic wrote:

Recently had an ATAG boiler fitted, way quieter than Worcester and full of metal fittings, not a plastic one in site. Same guarantee as the Worcester offering, worth a look.

Ideal Logic every time

Don't know much about the Logic but Carodon which is the parent company of Ideal Standard almost went bust due to the failure of the Ideal Isar and Icos. They had to pay a huge amount of compensation to customers and installers due to flooding issues etc.
Could be that they have learned a lesson and the Logic is a superior boiler. I haven't touched an Ideal boiler since the Isar.
Just my opinion for what its worth. Now at the point when I learn something new something old is lost out the other side !
Now retired so it doesn't matter anymore.
Freelander now gone.

npinks wrote:

taztastic wrote:

Recently had an ATAG boiler fitted, way quieter than Worcester and full of metal fittings, not a plastic one in site. Same guarantee as the Worcester offering, worth a look.

i spoke with my plumber at work regard ATAG, he had fitted one previously, problem was when a part was needed, non in UK and had to wait 4 weeks for it to be shipped over, disgruntled customer etc

archie98 wrote:

Ideal Logic every time

My old boiler is doing fine. I married her in 1973. 3 x FL1 2 manual + 1 auto
5 x FL2 4 manual + 1 auto
Now Discovery Sport P250 MHEV SE