Advice please for new boiler

Dr.D

Please can I get advice on which boiler to choose. My situation is -
It is a small detached 3 bed Victorian solid wall house, originally 2, 2 up 2 down cottages knocking it one.
I current have a 30 year old boiler that needs replacing with tanks in the loft and bathroom.
my cold water pressure currently is stronger than my hot water pressure so when I run a shower connect to mains in the bath, the cold overpowers the hot and it is impossible.
At some pointin the next year I want to put a new bathroom and shower in, and possibly a second shower.


My options given are all Worcestor Bosch boiler, with new controls, power flush etc -
1) 42 combi in loft removing all tanks £3200
2) 30 combi in loft removing all tanks £2700
3) 15 fully pumped system boiler in loft and leaving tanks £2300

My questions are because I want to an extent be future proof, and it is a lot of money to spend, I am not bothered really by the tanks in the bathroom, just want your advice on which to go for? Regarding my hot water situation and new shower, and also costs, is it worth paying an extra £100 for a spirotrap?

Thank you in advance for your advice.

HappyMJ

Personally, I'd keep the current set up. Your 30 year old boiler is working isn't it? It won't save you much getting a new boiler. New boilers are made with cheaper metals and have an average lifespan of 10-15 years. If you assume 10 years will get get a ROI (return on investment) in less than 10 years. i.e will doing this save you £320 a year on your gas bills. When burning gas for hot water they are about 80% efficient and when burning gas for heating they can be 90% efficient. An old boiler is about 60 to 70% efficient. To save £320 a year your gas bills would have to be in excess of £1,500 a year assuming average figures of 85% efficiency of the new boiler and 65% for the old boiler.

You can get thermostatic taps so the cold water does not overpower the hot water which you may have to do anyway.

diywhynot

If you have sufficient mains flow & pressure I recommend a system boiler i.e. a Vaillant 600 series with an unvented cylinder also thermostatic shower mixers (Mira, Aqualisa, Grohe, Trevi) and a MB3.

What is the make and model of your current boiler?

dogshome

Be wary of the "In the Loft" installation - Because of stricter rules of where a boiler can be installed with regard to proximity to windows, doors and flue system inspections, it's the 'Easy' option for Boiler fitters/Plumbers.

However, Combi Boilers are known for throwing problems with water pressure, often because there is a very small leak in the radiator system - It's an easy householder fix to re-pressurise to get the system running again, but, how convenient is it to climb into the loft each time it needs doing ?

Gas_Safe

HappyMJ wrote: »

Personally, I'd keep the current set up. Your 30 year old boiler is working isn't it? It won't save you much getting a new boiler. New boilers are made with cheaper metals and have an average lifespan of 10-15 years. If you assume 10 years will get get a ROI (return on investment) in less than 10 years. i.e will doing this save you £320 a year on your gas bills. When burning gas for hot water they are about 80% efficient and when burning gas for heating they can be 90% efficient. An old boiler is about 60 to 70% efficient. To save £320 a year your gas bills would have to be in excess of £1,500 a year assuming average figures of 85% efficiency of the new boiler and 65% for the old boiler.

You can get thermostatic taps so the cold water does not overpower the hot water which you may have to do anyway.

Spot on advice: If you had a classic car that was working fine.. would you buy a new one because a salesman said you should? Your set up in the modern market would be worth thousands..

ollski

LOL yes keep what you got....whatever mysterious thing it may be!
The OP says 'it needs replacing', perhaps because it's dangerous, even lethal but yeh keep it blah blah blah