s2sap

Thanks all so in summary I would Use up more space pay more for roofing and founds save on a staircase Doesn't really make a case for it does it. If your design can be bungalow or 2 storey without impacting on your requirements a 2 storey home seems most effective

Thanks Ian that may be useful - have you used their services?

We have had to go back to the drawing board in relation to our house plans for various reasons and are now about to start the second revised design. We are looking at building a home approx 2000 sq feet and for the first time are considering building a bungalow as opposed to a two storey home. Assuming there are no space issues, planning issues or foundation issues affecting our choice has anyone considered the cost difference of a two storey home versus a bungalow. We want this design to be simple, staightforward and to keep build costs to a minimum. I understand there is additional roofing costs and additional foundation costs but are there perhaps also savings to be had with building a bungalow? Any views appreciated

Thanks for responses guys I will discuss this with plumber

I hope I can explain what I am looking for. We have an existing OFCH system which has 3 zones:- Downstairs (17 radiators) Upstairs (6 radiators) and Hot Water. All rads have traditional TRVs fitted. I want to be able to control individual room temperatures independently and remotely with a phone app. The Honeywell Evohome system looks like a good but expensive option. Expensive because of the number of radiators we have and that system requires one wifi TRV on each radiator which is driving cost up as each TRV can be around £50. As that system requires a TRV on each rad I thought that a wifi wall stat that controlled all rads in that room with wifi auto shut off valves would be a more cost effective sytem as some of our rooms have 4 rads in them. Anyone know of such a system or recommend something that might work

I have asked a local company to upgrade or replace our existing home alarm system which is 15 years old. I wanted one of the newer systems that would allow me to set and unset the alarm from my phone and be alerted if there were any activations etc on my phone. The company have suggested fitting a Pyronix wireless sytem from scratch in my home as the existing PIRs etc are so old, which is understandable. My concern is that I always assumed wireless systems were just for quick DIY installers - not professional installers. Am I wrong? Perhaps wireless has moved on as has all technology but I had assumed they would have recommended a wired system. Any thoughts?

I need to move a contact door alarm up abut 12 inches on the door frame and need to add a bit of cable to the existing alarm cable which is Red & Blue Joined : Black & Yellow Joined : Green Disconnected. The system is run by a 12v lorry battery. I need to fix this quickly but dont have similar cable. The closet type of cable I have to hand that I think would work is twin core lightweight 240v cable ( probably only 3 or 5 amp ) Would this be potential for joining to the existing alarm cable Thanks In Anticipation

Thank you for posting the link. However it really is beyond my interpretation. My eyes glazed over and I nearly fell backwards off the chair

I have done this decision to death and resurrected it many times There are several reasons why we are going LPG mainly initial capital outlay and potential length of stay in new property but not that reason alone - and we now need to make the LPG system as efficient as possible. We may change to ASHP in the future but as things stand right now its going to be LPG boiler so I need to figure out the right setup How do I do this - will a SAP calc be sufficient - if so I can upload one - if not where do I start?

There isn't - but through this thread I have concluded that I will prob not have any spare energy from the PV to heat an immersion in an UFH buffer so I would be heating any buffer with LPG rather than electric - and now trying to ascertain should I have a buffer for UFH or not if it is being heated by LPG boiler

But how would my setup compare to yours ie LPG

So if I go with a 4kw PV system that will probably not have any surplus to power an UFH buffer tank, what should I do with regards the heating system that will be an LPG boiler and UFH upstairs and downstairs. Whats the thinking on buffer tank or not for the heating ( as it probably wont have any input from PV ).

Yes I'd forgot about that thanks

Going with LPG boiler - no ASHP

OK then so if the maximum I will generate is about 17kwh per day in peak season and it would take 15kwh to replensish my 250L cylinder if empty I will probably be using most of my generated power heating the water and powering fridge freezers and other household items. Obviously I am happier with the generated power heating my water and powering appliances rather than exporting it at at 4p unit Based on this assumption I am not going to have much power left over to heat a buffer tank for UFH if it is third on the list for receiving generated power after household requirements and DHW requirements am I ?