Combi boiler for a 4 bathroom house - Advice please

[timmyjane]

Hi - the unit I initially enquired about is a combination unit in essence! but it does have a 170 litre water store so does have the facility to have 170 litres of heated water before I have to rely on the instant heat facility. It is also one of the most efficient boilers on the market as it condenses (reuses the waste heat from both water and central heating system). A tank in tank sytem meaning gas used and cost to heat therefore less I think. From all I have read it seems to have the capacity for a decent flow rate 46 litres a minute providing I have a good water pressure and inflow rate. It will also take up less space than a decent boiler and good capacity tank, with possibly less install cost if it can connect to domestic supply (gas pipe 5 ft away from where I may install it).

So is it a hybrid that comes up with a good solution to space problems, not sure, but not willing to just discount it as its classed as a 'combi'. Any combi without such a hot water store in my limited opinion so far would not work just based on flow rates quoted on standard ones. It seems to stand to reason if something quotes (as most standard combis do) it is able to heat and release water at between 10 and 20 litres a minute then it probably will not allow me to run the dishwasher in the morning, kids to be washing faces in sink me husband and lodger in the shower all at the same time in the morning without some kind of compromise.

So at the moment not discounting (what appears to be a good hybrid solution) as advice is clearly mixed on this one. Issue is potential price.

Thanks for advice so far, all been great.:vanish:

 

[Gray0689]

Hi - the unit I initially enquired about is a combination unit in essence! but it does have a 170 litre water store so does have the facility to have 170 litres of heated water before I have to rely on the instant heat facility. It is also one of the most efficient boilers on the market as it condenses (reuses the waste heat from both water and central heating system). A tank in tank sytem meaning gas used and cost to heat therefore less I think. From all I have read it seems to have the capacity for a decent flow rate 46 litres a minute providing I have a good water pressure and inflow rate. It will also take up less space than a decent boiler and good capacity tank, with possibly less install cost if it can connect to domestic supply (gas pipe 5 ft away from where I may install it).

So is it a hybrid that comes up with a good solution to space problems, not sure, but not willing to just discount it as its classed as a 'combi'. Any combi without such a hot water store in my limited opinion so far would not work just based on flow rates quoted on standard ones. It seems to stand to reason if something quotes (as most standard combis do) it is able to heat and release water at between 10 and 20 litres a minute then it probably will not allow me to run the dishwasher in the morning, kids to be washing faces in sink me husband and lodger in the shower all at the same time in the morning without some kind of compromise.

So at the moment not discounting (what appears to be a good hybrid solution) as advice is clearly mixed on this one. Issue is potential price.

Thanks for advice so far, all been great.:vanish:

What is the boiler make & model?

 

[timmyjane]

What is the boiler make & model?

ACV HeatMaster Gas Condensing Combination Boiler 85tc. Also do a 35tc which is a littler smaller but does not have comparable flow rate.

 

[Gray0689]

ACV HeatMaster Gas Condensing Combination Boiler 85tc. Also do a 35tc which is a littler smaller but does not have comparable flow rate.

Lol sorry thought you was on about another boiler

 

[timmyjane]

Lol sorry thought you was on about another boiler

You thought early on this would do the job, now you know the specific model, is opinion still good if I can bear cost?

 

[Gray0689]

You thought early on this would do the job, now you know the specific model, is opinion still good if I can bear cost?

Yes if you can have the budget it's the best on market acv is Rolls Royce stuff
As said get on to acv and ask there advice they will give you a help they may even say the 35 is big enough as they are super quick re heat times

 

[Dotty]

ACV HeatMaster Gas Condensing Combination Boiler 85tc. Also do a 35tc which is a littler smaller but does not have comparable flow rate.

Which you will require a commercial guy for. And as I said before - we're expensive!

I would imagine you currently have a u6 meter. The ACV requires 8m3 of gas per hour. assuming you also have a gas cooker or range this meter WILL be undersized. You're going to require a u16 or a g10 meter. An additional cost!

I can't even find a price online for the ACV other than the usual 'email us for a quote' type sites so that tells me you'd be looking at splashing out £3-4k for one.

There are cheaper solutions that will give you what you want.

 

[Dotty]

But as said by Gray, it is a decent boiler.

 

[Rickster123]

View Profile: Linkyplumb - Plumbing Forum | Plumbing Advice | Plumbers Forums | A forum for plumbers advice in the UK

I think linky is quite close to you and a very knowledgable chap. Might be worth dropping him a pm for another quote.

 

[Gray0689]

Yes if you can have the budget it's the best on market acv is Rolls Royce stuff
As said get on to acv and ask there advice they will give you a help they may even say the 35 is big enough as they are super quick re heat times

I sent you a private message with an email address of a bloke I know at acv give him a shout may be able to give you advice

 

[timmyjane]

Which you will require a commercial guy for. And as I said before - we're expensive!

I would imagine you currently have a u6 meter. The ACV requires 8m3 of gas per hour. assuming you also have a gas cooker or range this meter WILL be undersized. You're going to require a u16 or a g10 meter. An additional cost!

I can't even find a price online for the ACV other than the usual 'email us for a quote' type sites so that tells me you'd be looking at splashing out £3-4k for one.

There are cheaper solutions that will give you what you want.

No gas cooker but have one gas fire. will check meters out. I know someone was quoted in a thread (not this one £2100 for the tc35 plus install) i think DIYnot.com. Be interesting to see cost of bigger unit. Its the space it frees up that is interesting.

 

[Dotty]

£2100 for the tc35 plus install

:whatchutalkingabout

 

[timmyjane]

meant the cost of unit £2100. Plus installation total cost for guy was 4k but no idea what pipe work he had done.

 

[Dotty]

Was thinking to myself either that guy's on a promise or he'd seriously muffed his costings up!

 

[Ermintrude]

Which you will require a commercial guy for. And as I said before - we're expensive!

I would imagine you currently have a u6 meter. The ACV requires 8m3 of gas per hour. assuming you also have a gas cooker or range this meter WILL be undersized. You're going to require a u16 or a g10 meter. An additional cost!

I can't even find a price online for the ACV other than the usual 'email us for a quote' type sites so that tells me you'd be looking at splashing out £3-4k for one.

There are cheaper solutions that will give you what you want.

Oooops. I said 85 in previous .... 35 is 4m3 85 is about 9 as above ? But get a cowboy in and he will fit it on a u6 with 15mm supply and save u £350..Be fine. He said....
It's expensive but will do what u need. Meter upgrades can be negotiated with suppliers. If you move suppliers u can sometimes strike it lucky.

Don't discount cheaper options but not much will match up?