The problem is you are at the mercy of the esb rate for everything, we have a high efficency oil boiler, it heats the house and the water. In summertime it's turned off completely and we use an immersion to heat water then.
Oil is much cheaper to heat the average house with than either gas or electric.
I worked in the heating industry for years, you should think of your house like a wearing a coat, if your coat is thick and well insulated, you don't need much heat to top it up, and you'll use your heat source very little on cold days, because it keeps the heat in. If its thin and has holes in it, it will leak heat and you'll need to keep warming it up. That's why air to heat types are great for well insulated houses but terrible for older
You should really get a good heating systems person to come and have a look and assess it for you.
I'd bet he says condensing oil and maybe a solar water heating combo
Thanks, yeah going 100% elec opens me up to the highest price point.
I should note the existing plumbing for the rads is in bits and all needs to be replaced if going that way.
The plan is to:
wrap the house c.15k.
Attic is c.2k
Internal walls (12or25mm insulation) 2-3k (no labour cost)
Windows are already good so expecting a top BER.
The cost of air to water is around 15k with grant, electric rads are around 5k.
Just feels like a long time to make up the 10k delta between the two with how little either system will be on... Maybe I'm missing something...
If you're going to all the cost of putting in insulation and getting to Ber B+, then I'd look at the air to water option preferably.
We had our house wrapped after covid under the sei system, it's made a big difference passively, in the summer our house was like and oven on hot days, in winter it was noticeably cold and our heating system would come on and warm it up, and an hour after it turned off, it would be back to cool again.
We are now using our heating about half what we used to. We are ad Ber c+ and we are thinking of new windows and insulating the attic as well. We also changed our front door before the wrapping was done.
The oil boiler would be cheaper than the air to water, and at the end of the day it's a hear source to top up your heating, but my sister did a new build in 2016 and she's ber b+ and has air to water, underfloor heating. She says her electricity bill is lower than her old house and it's always at a balmy 20c
If his home has an oil boiler, I can almost guarantee the house wouldn't be suitable for a heat pump without astronomical amounts of work going into insulating the house.
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That’s what I have in the apartment yeah the old original ones, they really need updating but I’m just renting the place. Are the newer ones abit more energy efficient? Cheaper to run?
From what I've read into them, there is more control over heat retention, duration using electric (15-20min/h) and fancy thermostats to control all of this...
I'm not overly concerned, I grew up rural with 2-3 power cuts per year. Lucky we're not under threat of war and power cuts are fixed relatively quickly.
For just the water heating question - we actually don't have the boiler on at all in summer, we have no bath the power shower and washing appliances heat their own water so it's just any extra washing up really, which we can boil the kettle for. We have an immersion and we hardly ever switch it on
If renovating air to water would be the way to go or solar or both.
Comparing to gas on a 3 bed semi detached house with air source plus solar the anual cost all in for electric and heating was slightly lower than just the gas bill alone.
Prices have increased a lot and I don't have the kwh etc. But the annual electric bill in 2019 was €1200 Gas alone the previous year was €1300 and electric of around €1000.
Seai grant at the time was €33k towards but work was a lot more. There was also full external wrap, new windows and every single mm of piping insulated with Aircon armaflex insulation i think 75mm wall.
To be most efficient the water wants to lose as little heat as possible by the time it returns. I've seen so many bad install ls where the pipes from a split unit are exposed and not insulated and water tight pushing running costs well over double.
Thanks, my understanding is:
Insulation to b+ or more just has to happen.
Deciding between air to water or electric only is roughly an upfront cost but a saving after c. 10 to 15 years.
You could look into air to water heating - a lot of new builds use that
It's a huge outlay for washing my hands and the odd bath....
The problem is you are at the mercy of the esb rate for everything, we have a high efficency oil boiler, it heats the house and the water. In summertime it's turned off completely and we use an immersion to heat water then. Oil is much cheaper to heat the average house with than either gas or electric. I worked in the heating industry for years, you should think of your house like a wearing a coat, if your coat is thick and well insulated, you don't need much heat to top it up, and you'll use your heat source very little on cold days, because it keeps the heat in. If its thin and has holes in it, it will leak heat and you'll need to keep warming it up. That's why air to heat types are great for well insulated houses but terrible for older You should really get a good heating systems person to come and have a look and assess it for you. I'd bet he says condensing oil and maybe a solar water heating combo
Thanks, yeah going 100% elec opens me up to the highest price point. I should note the existing plumbing for the rads is in bits and all needs to be replaced if going that way. The plan is to: wrap the house c.15k. Attic is c.2k Internal walls (12or25mm insulation) 2-3k (no labour cost) Windows are already good so expecting a top BER. The cost of air to water is around 15k with grant, electric rads are around 5k. Just feels like a long time to make up the 10k delta between the two with how little either system will be on... Maybe I'm missing something...
If you're going to all the cost of putting in insulation and getting to Ber B+, then I'd look at the air to water option preferably. We had our house wrapped after covid under the sei system, it's made a big difference passively, in the summer our house was like and oven on hot days, in winter it was noticeably cold and our heating system would come on and warm it up, and an hour after it turned off, it would be back to cool again. We are now using our heating about half what we used to. We are ad Ber c+ and we are thinking of new windows and insulating the attic as well. We also changed our front door before the wrapping was done. The oil boiler would be cheaper than the air to water, and at the end of the day it's a hear source to top up your heating, but my sister did a new build in 2016 and she's ber b+ and has air to water, underfloor heating. She says her electricity bill is lower than her old house and it's always at a balmy 20c
Air to water is for heating the house. You could see to compare costs for that and conventional radiators.
If his home has an oil boiler, I can almost guarantee the house wouldn't be suitable for a heat pump without astronomical amounts of work going into insulating the house.
Similarly, electric heating is generally the most expensive way to heat a home in Ireland.
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I’ve electric heating in my apartment and the bills are very high in comparison to gas
Yeah the older Irish ones were very inefficient
That’s what I have in the apartment yeah the old original ones, they really need updating but I’m just renting the place. Are the newer ones abit more energy efficient? Cheaper to run?
From what I've read into them, there is more control over heat retention, duration using electric (15-20min/h) and fancy thermostats to control all of this...
If there was a power cut you’d freeze
I'm not overly concerned, I grew up rural with 2-3 power cuts per year. Lucky we're not under threat of war and power cuts are fixed relatively quickly.
not to mention.. Ireland isn't that of ice negative temperatures much. in an emergency can always buy the small gas stoves
For just the water heating question - we actually don't have the boiler on at all in summer, we have no bath the power shower and washing appliances heat their own water so it's just any extra washing up really, which we can boil the kettle for. We have an immersion and we hardly ever switch it on
If renovating air to water would be the way to go or solar or both. Comparing to gas on a 3 bed semi detached house with air source plus solar the anual cost all in for electric and heating was slightly lower than just the gas bill alone. Prices have increased a lot and I don't have the kwh etc. But the annual electric bill in 2019 was €1200 Gas alone the previous year was €1300 and electric of around €1000. Seai grant at the time was €33k towards but work was a lot more. There was also full external wrap, new windows and every single mm of piping insulated with Aircon armaflex insulation i think 75mm wall. To be most efficient the water wants to lose as little heat as possible by the time it returns. I've seen so many bad install ls where the pipes from a split unit are exposed and not insulated and water tight pushing running costs well over double.
Thanks, my understanding is: Insulation to b+ or more just has to happen. Deciding between air to water or electric only is roughly an upfront cost but a saving after c. 10 to 15 years.