• Welcome to PlumbersForums.net - The international free plumbing advice forum. Professional plumbers sharing advice with fellow plumbers and DIY alike. Register for free today! - Checkout the Plumbing Advice forum and then our Plumbing Videos area which still needs populating.

Discuss ASHP worth it or better to upgrade the boiler? in the Central Heating Forum area at PlumbersForums.net

howdoyousaynejc

Messages
5
Not an expert at all here, so please bear with me.

We bought a Victorian terraced house early 2 years ago that was maintained quite well, with a heating system consisting of UFH on the bottom floor with its own manifold and each room being a zone. We also have 5 radiators (2 aluminium cast) upstairs with only 1 thermostat in the hallway, with 2 cold water storage tanks in the attic and a hot water cylinder, all hooked up to a Drayton controller.
The boiler is a Logic System 18 boiler.

Parts of the heating system were quite old, so during our survey we had to replace them:
  • Replaced the hot water cylinder with an unvented Megaflo one and disconnected the 2 cold water storage tanks
  • The UFH pump gave up after a week, but turns out it was failing for some time already and caused a pressure build up in the system causing for the boiler to start to kettle and being above 3 bar - I'm assuming the boiler pump was overcompensating for the failing UFH pump
  • I'm assuming the boiler is 10+ years old and the previous owners haven't had it serviced for a few years, as we didn't find any documentation on it, so we had it fully serviced and the cleaned a bunch of gunk from it and over a week or so it completely stopped kettling
So now we've built up our sink-fund back up to a point where we're considering improvements to the house again and one of them is obviously our heating, here's what we are considering and would love advice on:
  • Our roof is V shaped with only half of the attic insulated, so that's the first and easiest thing to do (we haven't done it so far, as the empty Cold Water Tanks were too heavy and one them even leaking slowly, so we have to replace the whole plaster ceiling)
After which we then have multiple options:
  1. Install a ASHP and let it run over the current system (UFH downstairs + radiators upstairs) and upgrade to an UFH upstairs in a couple of years?
  2. Wait a couple of years and install ASHP together with the UFH upstairs
  3. Wait a couple of years, upgrade the boiler and install ASHP together with the UFH upstairs once the tech gets even better

Any thoughts are appreciated 🙏
 

ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
Messages
31,780
Solutions
2
Is it fully decorated? / can you get at the mains pipework?
 

Reply to ASHP worth it or better to upgrade the boiler? in the Central Heating Forum area at PlumbersForums.net

Similar threads

RedMango
Unless it's had some exceptionally effective insulation added recently, I also find it difficult to believe this the correct figure for a 1930s...
Replies
16
Views
345
Chuck
C
harpermin
Hi Just looking for some suggestions on what to look for/try next. Up until last weekend, our oil fired boiler central heating was working fine...
Replies
0
Views
80
harpermin
harpermin
D
Sounds like you need somebody competent to assess your set up and advise on improvements . tread carefully trying to find somebody to do this...
Replies
2
Views
191
Murdoch
M
S
Hello all I have a Worchester Bosch greenstar 32CDi combi with an S plan, 3port for UFH downstairs (4 zones) via manifold & mixer valve, &...
Replies
0
Views
188
StuckWithUFH
S
Creating content since 2001. Untold Media is a Registered Trademark.

Newest Threads (Please Reply)

Search Forum

Top