Newbie with CH design question

  • Thread starter Thread starter Guilbert301
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Guilbert301

Hi there,

I am after some help and advice designing a new central heating hot water system.

I am building a new extension to my property

Currently i have a 3 bed with downstairs toilet which is powered by a 7 year old Vokera 28 compact combi.

I appreciate this will need replacing to cope with the extension.
This will add 2 further bedrooms another downstair toilet an ensuite bathroom, dressing room and 6x3m orangery

What in everyones opionions would be the best way to get the heating and hot water to the new rooms.

Currently the water pressure is pretty reasonable and suitable for the house but not fantastic.
The shower and the new shower will be the steam rooms with massage jets etc so pressure is quite critical to cope with these.

Would it be simply replace the existing boiler with a new HE unit that has a lot higher output and put underfloor heating into the orangery.

I have been told that an other idea would be to keep the existing combi boiler to power all the central heating system and then to get a unvented twin coil cylinder with a pump for the hot water system and still the underfloor heating for the orangery either electric or water.
I have toyed with the idea of the solar hot water panels for the roof and using these in tandem with the above. Although the pay back on these systems looks incredibly long.
I dont intend to be in the house for much more then another year or two so price is quite important unless it dramatically improves a house value and saleability.

Any help and advice anyone can give me would be greatly appreciated, as would recomendations of equipment needed/rough costs/suppliers etc.

Thank you

Jonathan
 
U don't have to change ur boiler, I'd suggest keeping the combi, have it feed say ur kitchen only for hot water. Now add an unvented hw cylinder to the heating side and have it zoned so one zone valve feeds the heating circuit and the other zone valve feeds the hw cylinder. The unvented hw cylinder would then feed all your leftover hw requirements. It's called 's' plan heating. Except urs is fed from the combi which is perfectely acceptable. It saves u the cost of a new boiler and means u are paying for the new cylinder and the labour cost to adapt it. That's what I'd be looking at if it was me matey
 
Why not get electric wall heaters for the new rooms and put in an electric shower, save you a lot of agro, and being a new build extension it would be energy efficient anyway! Just gives you another option. 😀
 
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