Sorry about the tabloid-esque subject- trying to fit 2 q's in one topic.
New Vaillant Ecotech 831. Install in one day took about 9 hours- two guys working, though they had to re-route a hot water pipe, maybe 30 minutes work.
Appeared that there were no cold spots on rads; closed system, 12 years old, microbore. Installer (vaillant approved) said no need to clean first, but was ok with my adding Fernox F3, 3 days before install. We ran it very hot for about 2 hours per day, and on low for another 2 hrs.
With my adding F3 ahead of his guys, he said he would then, drain, rinse (not PF), fit new boiler, fill with cleaner, drain/rinse, fill with inhibitor.
TBH i have no reason to believe that he did not do any of the above. I just now wonder, given than a.n.other contractor said he used meter to gauge TDS and applied printout to paperwork, should I get this done?
I am wondering about gettin 3rd party to give TDS tests and hold this on file in case of failure that Vaillant say is due to poor/dirty install.
More mistrustful of big companies than the contractor....
......
Finally, the thread below (while seeking answers to mine) got me wondering, should I wait for a cert (Gas-safe) before paying? Tried out- boiler, seems to work fine?
Read more: //www.diynot.com/forums/viewtopic.php?p=972500#972500#ixzz3IzIPpTx6
New Vaillant Ecotech 831. Install in one day took about 9 hours- two guys working, though they had to re-route a hot water pipe, maybe 30 minutes work.
Appeared that there were no cold spots on rads; closed system, 12 years old, microbore. Installer (vaillant approved) said no need to clean first, but was ok with my adding Fernox F3, 3 days before install. We ran it very hot for about 2 hours per day, and on low for another 2 hrs.
With my adding F3 ahead of his guys, he said he would then, drain, rinse (not PF), fit new boiler, fill with cleaner, drain/rinse, fill with inhibitor.
TBH i have no reason to believe that he did not do any of the above. I just now wonder, given than a.n.other contractor said he used meter to gauge TDS and applied printout to paperwork, should I get this done?
I am wondering about gettin 3rd party to give TDS tests and hold this on file in case of failure that Vaillant say is due to poor/dirty install.
More mistrustful of big companies than the contractor....
......
Finally, the thread below (while seeking answers to mine) got me wondering, should I wait for a cert (Gas-safe) before paying? Tried out- boiler, seems to work fine?
Read more: //www.diynot.com/forums/viewtopic.php?p=972500#972500#ixzz3IzIPpTx6