New Boiler (Unvented Cylinder)

kpk2000

Recently moved house (Birmingham - 4 bed/2 bath) and has 10 year old inefficient Potterton system boiler in downstairs utility with a hot water vented cylinder in upstairs airing cupboard and cold water tanks in loft. Hot water pressure is very low (particularly in shower) so investigating options including new boiler or shower pump.

If anyone could advise or has anything good/bad to say about Unvented Cylinders (especially the noise as recommended to install in airing cupboard in main bedroom).

Boiler Quote - could do new cylinder only or cylinder & system boiler with separate prices:

SUPPLY AND FIT NEW UNVENTED CYLINDER AND SYSTEM BOILER AND SMART CONTROLS WITH WEATHER COMPENSATION.

Drain down of heating and hot water system
Test gas and isolate supply
Test electrics and isolate
Removal of boiler
Removal of cylinder and loft tanks
Install new pipe work where required
Install new cylinder and prv pipe work (Vaillant unistore 180litre indirect 25 year warranty)
Install new boiler (Vaillant ecotech plus 618 system boiler)
Install new flue
Install filter and deaerator (Spirotech MB3 & RV2)
Install condensate pipe and boiler prv
Install new expansion vessel and control set
Refill and test heating system
Refill and test hot water system
Test and purge gas pipe work
Complete electrics and test
Run heating system and vent system
Flush heating system
Run hot water system and test
Test all controls and commission
Complete all paperwork and benchmark check list, gas safe notification and warranty
Explain to customer and handover

Cylinder installation price £1600.00
Boiler installation price £2395.00

SUPPLY AND FIT TOTAL PRICE £3995.00

plumb1_2

I would go for a unvented cylinder over a combi most of the time. Noise? just insulate/sound proof the cupboard if you need to. But you wont get much noise.
The detailed quote, contains flush system near the end, best to flush the system before installing new boiler.

C_Mababejive

What make and model is the potterton and is it in good condition? Ten years isnt old for that type of boiler. Mine is 35 years old. I'm leaning toward the unvented cylinder only..