Author Topic: building a house  (Read 12526 times)

gander

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Re: building a house
« Reply #90 on: June 26, 2020, 03:38:00 PM »
Air Source Heat Pump is £3500-4000 more expensive.

Putting in underfloor heating either way but it suppose to be more efficient with a heat pump. However not sure about hot water temps with ASHP
I have one and hot water isnt an issue, 55 degrees or more if wanted.  the hot water tank still has a built in emersion to bring the temp above what the heat pump can give - has to to disinfect it

giveherlong

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Re: building a house
« Reply #91 on: June 27, 2020, 09:36:07 AM »
Can't decide on air source heat pump or traditional oil boiler

I like the idea of having lower heating bills and having one bill for heating and electric but is the additional cost worth this and has anyone had any experience with these. I am obviously getting the sales pitch from a couple of companies.

Need to make up my mind as NIE need to price how much my connection will be and this will be a factor.

If you are going underfloor, a Heat Pump would be your best option combined with solar to provide warm water. The built in immersion will provide back up for winter

Whatever you go with try and get the house airtight, well insulated and heat recovery ventilation is a good investment

Your other option is stand alone oil burner, Grant condenser is very efficient. Send your plans to Grant and they will price you up both options
You can also incorporate a stove with back boiler to this system but you need to get your plumbing set up right with Maxi pod type hot water tank/buffer tank

Speak to a good plumber who is up to speed on both set ups  before you make up your mind
« Last Edit: June 27, 2020, 09:37:56 AM by giveherlong »

WT4E

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Re: building a house
« Reply #92 on: June 27, 2020, 11:01:46 AM »
Can't decide on air source heat pump or traditional oil boiler

I like the idea of having lower heating bills and having one bill for heating and electric but is the additional cost worth this and has anyone had any experience with these. I am obviously getting the sales pitch from a couple of companies.

Need to make up my mind as NIE need to price how much my connection will be and this will be a factor.

If you are going underfloor, a Heat Pump would be your best option combined with solar to provide warm water. The built in immersion will provide back up for winter

Whatever you go with try and get the house airtight, well insulated and heat recovery ventilation is a good investment

Your other option is stand alone oil burner, Grant condenser is very efficient. Send your plans to Grant and they will price you up both options
You can also incorporate a stove with back boiler to this system but you need to get your plumbing set up right with Maxi pod type hot water tank/buffer tank

Speak to a good plumber who is up to speed on both set ups  before you make up your mind

Thanks that's great advice.

One of the guys who is trying to sell me the heat pump told me that he has a customer who put it in that I can go talk to who is very pleased with it. £1400 for the year to run electric and heat and hot water on a similar size house to what I will build.

giveherlong

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Re: building a house
« Reply #93 on: June 27, 2020, 12:19:18 PM »
Can't decide on air source heat pump or traditional oil boiler

I like the idea of having lower heating bills and having one bill for heating and electric but is the additional cost worth this and has anyone had any experience with these. I am obviously getting the sales pitch from a couple of companies.

Need to make up my mind as NIE need to price how much my connection will be and this will be a factor.

If you are going underfloor, a Heat Pump would be your best option combined with solar to provide warm water. The built in immersion will provide back up for winter

Whatever you go with try and get the house airtight, well insulated and heat recovery ventilation is a good investment

Your other option is stand alone oil burner, Grant condenser is very efficient. Send your plans to Grant and they will price you up both options
You can also incorporate a stove with back boiler to this system but you need to get your plumbing set up right with Maxi pod type hot water tank/buffer tank

Speak to a good plumber who is up to speed on both set ups  before you make up your mind

Thanks that's great advice.

One of the guys who is trying to sell me the heat pump told me that he has a customer who put it in that I can go talk to who is very pleased with it. £1400 for the year to run electric and heat and hot water on a similar size house to what I will build.

I would treat anything a sales man has to say with a huge pinch of salt
Join this Facebook group if you are building a house https://www.facebook.com/groups/816924585093717/?ref=share
Use the search button on there at top of page to search heat pump/air source heat pump which will help your research
Hundreds of different opinions on there depending on who you talk to. Renewable building regs much stricter in South
Some horror stories on sky high electric bills if pump is undersized, controls/stats not set right or house not airtight. If house isnít air tight with heat pump you are wasting your time
The key with any of these systems is preventing cold air leaking in so you got to get the basics of insulation and air tightness sorted first. If you want air tight heat recovery is a must
Personally I have seen heat pump and oil at first hand. Each has its own pros and cons
If your house is well insulated and air tight it will take very little to heat your home regardless

blewuporstuffed

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Re: building a house
« Reply #94 on: June 28, 2020, 04:56:04 PM »
Can't decide on air source heat pump or traditional oil boiler

I like the idea of having lower heating bills and having one bill for heating and electric but is the additional cost worth this and has anyone had any experience with these. I am obviously getting the sales pitch from a couple of companies.

Need to make up my mind as NIE need to price how much my connection will be and this will be a factor.
I am considering exactly the same thing myself.
I like the idea of the A2W but unsure if it makes sense from a cost point of view
I can only please one person per day. Today is not your day. Tomorrow doesn't look good either

LeoMc

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Re: building a house
« Reply #95 on: June 28, 2020, 10:22:03 PM »
The better you insulate, the longer the payback.