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Hi, Hoping someone on the forum knows more about the technical CONFIguration and SERVice menu options for the Viessmann Vitodens 100 B1KA than appears in the "Installation and Service Instructions". I am looking to see if its possible to adjust the primary circulating pump (the one internal...

Hi, I have an NTI T200 combi boiler/tankless DHW - installed in 2003. This for a 2 adult household. Loads are basement underfloor (approx 500 sq ft), one small radiator/towel rack, and a 120,000 BTU air handler (vents in all parts of the house - total 2000 sq ft). The house is older, but...

Hi, I have a NTI Trinity T200 Combi boiler installed 2003 and maintained consistently since then. I've been happy with its performance and economy, although I have also had a fair number of (relatively minor) issues with it - but I'm told these are "normal" (pump failure, igniters failing...

Hi, Looking for a little help selecting a pump to drive domestic hot water recirculation in my home (I am the home owner). I have a tankless hot water heater and no-dedicated return line. I don't have power available under the furthest two sinks! As far as I can tell none of the systems...

Hi, Didn't want to post to the other current thread on tankless recirculation because I have a slightly different situation / idea I have a instant-on domestic hot water boiler (NTI Trinity T200). The flow switch to trigger the boiler requires at least 1/2 GPM flow. I have installed...

Hi, Just been installing a Grohe Rainshower head (28 373) which has a G 1/2" Female inlet. I was planning to use the chrome Grohe Shower Arm / Nipple (28 492) which has a 1/2" NPT-MIP (Male) at the supply end...and a G 1/2" Male at the end to connect to the shower head. Unfortunately...