Air to Air
Probably a bit of a unique situation.
We have a fairly large Bungalow in the Highlands. Attached to our Bungalow is an Annexe that we rent out as a short term let / Airbnb.
We primarily market ourselves as Dog Friendly and have been very successful at building a regular client base. But we aren't generally open in the winter, our season is April to November.
So, for five months of the year we don't heat that part of the house. Currently we're using oil but I'd like to move away from that longer term.
The annexe side of things was a new addition in 2012 and is very well insulated the rest of the house is a 1995/2000 build and is of resonsable but not amazing insulation. Annexe bedrooms are part our house but have good insulation in the walls and ceilings.
We have excellent loft space so it would lend us to an air to air central system. From what I've read, it's a bad idea to use an air 2 water hp sized for the property and then turn off 50% of the radiators as it will lead to excessive cycling.
I don't plan to remove the oil boiler for now. It will still be used for hot water until we can afford to replace the hot water tank, which will be in four or five years. There can be upto eight people needing a shower in the morning.
Goal is to get this in before Winter to reduce oil deliveries.
So, my questions.
1 - Am I barking up the wrong tree with a2a if I only want to heat 60% of the house?
2 - Ducted or Minis? The loft is completely open
3 - How noisy are the central units?
4 - If I had a professional install a central, how easy is it to install the ducts? Most rooms are plaster board straight in with the exception of our main, office and kitchen.
5 - for bathrooms. What's recommended for them in an a2a?
Thanks for any replies.