Hi,
What's the best product available for restoring central heating efficiency. (especially circulation problems).
I've heard that Calchem is good be there seems to be many on the market.
Has anybody had good sucess with a particular brand?
Thanks
What's the best product available for restoring central heating efficiency. (especially circulation problems).
I've heard that Calchem is good be there seems to be many on the market.
Has anybody had good sucess with a particular brand?
Thanks