correct dosing of chemicals

[cypher007]

my system comprises of:

FE tank in loft.
ideal classic rs250 about 10m run of 28mm to HW tank CH pump circuit.
3 double panel rads.
9 single panel rads.
unvented HW tank.

do you think I need to use 2ltres of stuff like inhibitor? as it says on the container upto 10 rads.

 

[woodytheplumber]

I would personally put 3 tubs in for good measure I only use merchants own brand so its only a fiver a tub

 

[Ermintrude]

Yeh 3 for me but it's open vent so fairly futile

 

[woodytheplumber]

just makes you/me feel a bit better I guess

 

[AWheating]

2 bottles of buildcert approved should be the min.

 

[cypher007]

bum.

maybe that's why I haven't exactely noticed an improvement. ill chuck another £17 in then.

p.s. its x400 im playing with.

 

[helpsy]

As AW says along as it has the Buildcert mark on you'll be good. I usually do 1 bottle per 10 rads.