Condenser boiler vs boiler stove

kerdiff

Hi, I have a large bunglow 21 radiators (about 2700 square feet) and dont know weather to install a back boiler stove or upgrade my heating system....I've spent about €1800 on oil in 3 months (it's been a cold winter so far) so don't know if a stove will save on oil or ugrade the boiler to save on oil.....I was quoted between €5000 and €5500 to install the stove. Recently had walls pumped and waiting to get attic insulation top up.

demanufactured

How many rads are doubles?

Effects

Have you got it zoned? That sounds like a mad amount to be spending on fuel.
Have you got enough fuel to keep a boiler stove operating at the same output as the oil burner?

kerdiff

demanufactured wrote: »

How many rads are doubles?

15 double radiator's

kerdiff

Effects wrote: »

Have you got it zoned? That sounds like a mad amount to be spending on fuel.
Have you got enough fuel to keep a boiler stove operating at the same output as the oil burner?

I have 2 zones....the main living room/kitchen and the bedrooms and to be honest my kids spend a lot of time in their room so I do have to turn on both zones most of the time.

torregolf

kerdiff wrote: »

Hi, I have a large bunglow 21 radiators (about 2700 square feet) and dont know weather to install a back boiler stove or upgrade my heating system....I've spent about €1800 on oil in 3 months (it's been a cold winter so far) so don't know if a stove will save on oil or ugrade the boiler to save on oil.....I was quoted between €5000 and €5500 to install the stove. Recently had walls pumped and waiting to get attic insulation top up.

I’m in much the same predicament. Would like a stove. What make/output have you been quoted for and presume this includes installation?

demanufactured

kerdiff wrote: »

15 double radiator's

Each one of those amounts as 2 rads....
You haven't a hope... No stove will run all that..

Best advice would be to insulate the place more and stick with the OFCH.

kerdiff

What if I got 12 radiators zoned and got a smaller boiler stove to heat those radiator and when I require to the whole house to be heated I use it in conjuction with the oil.

agusta

kerdiff wrote: »

What if I got 12 radiators zoned and got a smaller boiler stove to heat those radiator and when I require to the whole house to be heated I use it in conjuction with the oil.

How many of the 12 are doubles?,yes your thinking along the right lines,except you will still need a very big stove to heat these,especially if some of them are doubles.
e.g If the manual for a stove says it will heat 16 rads[or 8 double rads],in reality,it will do less, more like 10 rads.Unless the air is fully open and your using a high volume of coal.Then it gets expensive.

MicktheMan

kerdiff wrote: »

Hi, I have a large bunglow 21 radiators (about 2700 square feet) and dont know weather to install a back boiler stove or upgrade my heating system....I've spent about €1800 on oil in 3 months (it's been a cold winter so far) so don't know if a stove will save on oil or ugrade the boiler to save on oil.....I was quoted between €5000 and €5500 to install the stove. Recently had walls pumped and waiting to get attic insulation top up.

Imo, you're looking at this the wrong way. Instead of trying to figure out how to heat the house differently, how about thinking about your heat loss and how to minimise this. Your 5 grand or whatever could be used a lot wiser perhaps.

Tom44

A decent A rated boiler would save 40% on fuel.
But you never mentioned what you have ??????
If its bad.

kerdiff

At the moment i have a grant 140-160 multipass oil boiler and it's about 15 years old, I was told that it burns about a gallon of oil every hour.

Wearb

kerdiff wrote: »

At the moment i have a grant 140-160 multipass oil boiler and it's about 15 years old, I was told that it burns about a gallon of oil every hour.

If it was running all of the time it was switched on then it would use roughly that amount. Mostly boilers run roughly* about 50% of the time they are switched on, unless they are continually switched on and off every couple of hours. (*depending on insulation and controls)

Is it well serviced? Do you have combustion printout from last service?

Some of the savings that you will get from a new boiler comes from the controls that are usually fitted at the same time. Those controls can be fitted to an existing boiler and give the same part of those savings. Boiler upgrade alone will give you about 10/12% savings, assuming both are setup and maintained according to Manufacturer instructions.

OwenM

I'm heating 12 rads and HW with a 17Kw boiler stove, and to be honest if my house was as big as yours it wouldn't be worth the effort of getting all that wood delivered, fueling the stove - you would probably want to hire someone to live in your house just to keep it topped up. I think the biggest domestic boiler stove I've seen advertised is 30kw and thats not big enough for your 36 (equivalent) rads so your into commercial/industrial equipment.
I would replace the boiler with a more efficient condensing model.
If you have a large open plan area a non-boiler 'dry' stove would work, allowing you to turn rads in that area off or use TRV's to do it for you.

Also, check your tank isn't leaking, seems like a savage amount of oil.

Markcheese

Insulation and airtightness (draught proofing)
Decent controls, zoning and thermostats
And a new condensing boiler... Let a stove be a room heater...