Help, I am now getting to the stage where the plumber is required, I am still unsure about zoned heating and how it works, there are only 2 of us, and I have turned 1 bedroom into a bathroom, and another into and office, so in effect we have only 2 bedroooms although the office can convert =back easy and the new extension which will be a gym/xtra living room has an ensuite off so that can become a bedroom as well = 4 beds for resale. My idea of zoned is u heat living area when in it and then bedroom area when required but as I only have 2 beds I am opting for a powerful pump, condensing boiler, a mix of solo rads and barlo rads, thermostats on rads and linked to a timed thermostat control.
This is the tricky bit, the floor has been kangoed but plumber has opted to go straight down the corridor and hallway, then no doubt branch off to rads but as top floor was shallow I am not convinced I am going to have sufficinet cover over insulated 25mm or 3/4 inch copper pipe. Builder has said raft is narrow near centre and may crack if we kango into it, engineer said use angle grinder which plumber said was too dusty.!! Is there a definitive guide to running pipes? Should I insist plumber runs them in hall but puts them as close to wall as possible? Or should I insist he uses the runs that were used for the old system ie take out old and replace with new? Is there any super duper gadget that will cut into raft and allow me to have pipes 4" down? Cover is about 1 and a half at the moment but I intend to put ceramic tiles on as well. I am worried that pipes are going where there will be a lot of traffic. The old pipes are still in situ but he only intends to pull out old that is directly in his way. I was happy originally but the lack of depth now is worrying me. My builder is not happy that I am going direct route so he is not a great help.
I am having a pump in cupboard for 2 power showers and an electric in the other en suite.
I am going to have 18 rads max plus a kicker. Area is 2000 sq ft and I am putting a rad in garage as that may become a room in the future.
Help!
noah