because I had assumed it was fixed until the post I quoted from made me wonder. My apologies for the hi-jack.
Boilermate 2000 Hot water or lack of
- Thread starter Woody76
- Start date
because I had assumed it was fixed until the post I quoted from made me wonder. My apologies for the hi-jack.
Sponsored Links
B
BigBurner
Once you have solved the DHW problem, I would do the following:
1) Fit a Magnaclean filter on the CH return loop to the Boilemate.
2) Make sure you have enough inhibitor in the system - minimum 2 cans of X-100.
You can improve the system further.
1) Replace the CH pump (have this as a spare for the others, so no waste) with a Grundfos Alpha or Wilo Smart pump (£45 on s/fix). Fit a full bore valves either side of the Magnaclean.
2) Link out the room stat terminals and remove any wall room stat.
3) Fit TRVs on all rads.
Comfort conditions, economy and pump noise levels will be improved.
So for under £180 you can give top class protection to the system and gives superior comfort conditions in the house...and less pump noises.
1) Fit a Magnaclean filter on the CH return loop to the Boilemate.
2) Make sure you have enough inhibitor in the system - minimum 2 cans of X-100.
You can improve the system further.
1) Replace the CH pump (have this as a spare for the others, so no waste) with a Grundfos Alpha or Wilo Smart pump (£45 on s/fix). Fit a full bore valves either side of the Magnaclean.
2) Link out the room stat terminals and remove any wall room stat.
3) Fit TRVs on all rads.
Comfort conditions, economy and pump noise levels will be improved.
So for under £180 you can give top class protection to the system and gives superior comfort conditions in the house...and less pump noises.
Ok I connected the DHW pump as described and ran the hot water. The water read 65 and then dropped steadily to 22 after a few seconds, then it fluctuated as before (ie between 22 & 30).
The store temp was reading 73.
Does this mean the pump is faulty? Or could it be the plate heat exchanger being scaled up again?
Sponsored Links
Thanks Softus,
How easy is it to replace the heat exchanger? Is it something I could do myself?
As this will be the second time in 18 months will a water softener help? Or is it likely that the heat store side will get scaled up even if the DHW side doesn't?
Many thanks,
Simon
Fairly easy, and yes you can.
The important thing is to drain down - there's too much scalding water in the store to take risks.
Replace the drain off washer when the store is empty.
A slimline 30mm open-ended spanner is the best tool for the heat exchanger nuts.
Some BM2000s get blocked on the cold feed; others on the vent. Leave plenty of time for filling the system in case this happens to you.
Yes, but you would need to fill the store with unsoftened water.
It depends whether you want to spend £120 every 18 months, or shell out £x00 on a softener and then bear the recurring costs of servicing and salt.
The primary side doesn't scale up, but without inhibitor it would get gunged.
When you change your HEX, leave out the inhibitor on the first fill so that you can't blame me for the extra expense if it turns out I'm wrong (but I'm not).
Can you give me a step by step guide to changing the plate heat exchanger?
How much water is contained in the store? How long does it take to drain?
Thanks
. Buy new heat exchanger.
. Buy spare drain off washers.
. Shut off power to BM2000 (and boiler).
. Shut off water supply to F&E cistern.
. Drain.
. Shut off cold mains supply to BM2000.
. Open lowest hot tap in the house.
. Undo top secondary connection on heat exchanger.
. Get a drip tray ready, and undo bottom secondary connection.
. Undo top primary connection.
. Slacken bottom primary connection.
. Swing down heat exchanger and drain into drip tray.
. Undo bottom primary connection and remove old heat exchanger.
. Remove old rubber washers.
. Install new heat exchanger with new rubber washers. Don't drop them down cracks in the flooring. Don't overtighten.
. Replace drain off washer.
. Close lowest hot tap in the house.
. Reinstate cold mains supply to BM2000, and check for leaks on secondary connections.
. Check F&E cistern for gunk - sponge out if necessary.
. Reinstate water supply to F&E. Allow BM2000 to fill and check for leaks on primary connections.
. If no leaks, then shut off F&E supply again, and drain off about 8 gallons of water.
. Add inhibitor to F&E, then fill up again.
. Restore power to BM2000, and allow 30 to 60 minutes to heat up.
. Test.
The answer is on the label on the front of the appliance.
10 to 15 minutes unless the vent and cold feed are blocked.
Thanks Softus! You were correct the PHE was scaled up on one side.
I have replaced the PHE and we now have lots of reliable hot water.
I guess this will be an annual job for me now with the rate at which the scale builds up!
Many thanks for your help.
Woody
I have replaced the PHE and we now have lots of reliable hot water.
I guess this will be an annual job for me now with the rate at which the scale builds up!
Many thanks for your help.
Woody
B
BigBurner
Clean the old one and use a straight swap next time.... Or get a water softener.
Well paint me yellow and call me a kipper.
Keep an eye on dripping taps, and also that the pump control is keeping the temperature to a reasonable level (i.e. around 55-60°C).
My pleasure.
It was a straight swap this time, oh challenged one.
I've said it before and I'll say it again - you've never descaled one of these, and therefore you don't know what you're talking about, you utter, utter, charlatan.
B
BigBurner
The only challenged one is you. You can't read properly.
You should stop making things up. ...and stick to drains.
Nevertheless, I overcame by reading disability and solved the OP's problem utterly and comprehensively.
I'm not the one pretending to have successfully descaled a GT017.
B
BigBurner
You are of the deluded opinion that a plate heat exchanger cannot be descaled.
I've never written that, and I've never thought it.
The fact remains that you've never successfully descaled a GT017.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
