C1 to B3/B2 upgrade in an apartment

astoriaie

There are for sale several apartments that have different ratings, ranging from C2 to B2, but that all have similar layouts in the same apartment complex. They are all on the ground floor, with the same windows and similar doors and floors. Would it be safe to say that the difference is probably due to a newer boiler? The rentals likely have the same boiler that was installed when built around 2005.

I am just wondering what are the easiest options to upgrade an apartment that has double glazed windows and a standard boiler:

• new boiler
• led bulbs
• new door?
• lagging jacket?
• Filling any gaps in the skirting boards and windows?

Since this is an apartment, I can't imagine that there is much that can be done in terms of adding insulation.

Would installing a different type of boiler, like a combi boiler, make sense either financially or in terms of BER? Or just stick with the standard boiler? My issue with a standard boiler is that the water tanks take up a ton of valuable space and in the summer it is very inefficient for 1-2 people. Are there grants for this?

Would it make sense to install eletric showers to use only during the summer?

sydthebeat

https://www.housingagency.ie/news-events/webinar-energy-saving-multi-unit-developments

odyssey06

OP is there an individual gas boiler in the apartment? Or are you referring to the immersion for heating water?

astoriaie

https://www.boards.ie/discussion/comment/121173349#Comment_121173349

The apartment has a conventional boiler. I have been told replacing an old one with a condensing boiler would be more energy efficient. I am just wondering what other little things I could do to improve the BER rating and of course my own comfort.

gipi

Depending on the water system set up, you may not be able to get rid of your water tank completely as it may be used to store cold water for the apartment as well as hot (it may be segregated).

An apartment owned by a friend has this set up. First floor apartment, water is pumped from ground floor to a cold water tank and from there to the taps, bathroom, etc. The tank is segregated, and part of it is heated for the hot water supply.

dockysher

Very board question, yes replacing your boiler with new condensing boiler would improve BER rating, but how much depends on efficency of current boiler compared to new one.

If no insulation on water cylinder a lagging jacket will improve BER but I would suggest a new cylinder if cylinder old and no insulation.

Filling gaps in skirting boards and widows won't improve BER but obviously will improve heat retinion in apartment.

There are no grant's for new boilers.