Best Of
Re: Post for feedback
I think your neutralizer is upside down, the outlet wants to be high to hold back a reservoir there, for more neutralization time,
Re: Please help connect thermostat to navien combi boiler
Lost the install manual already? That's not good. There are on-line copies.
There are also wiring diagrams in the Appendix
Page 43. Thermostat all three wires (Ecobee or NEST) I would probably use Zone 1.
Page 43. Circulator
Has this all been done ?
Re: Trying to understand wiring for heating system
You need to list the components you have
Model of zone valve(s) and quantity
How many thermostats
Do you have an indirect water heater or tankless water heater (probably not the later) ?
quantity of circulators
24 volt gas valve or milivolt gas valve
number of transformers
and more pictures
Re: high velocity ac
If you mean the duct is insulated on the inside like with duct liner, I have never seen round duct that way. Round metal duct insulated on the outside with fiberglass or Armaflex or Pre insulated flex duct
Re: high velocity ac
high velocity system ducts are critical. # of takeoffs per ton MUST be designed properly
pecmsg
Re: Need help with Radiant How to go laying panels over existing floor
typically radiant walks are limited to the lower 3’, so mostly out if harms way for picture hanging etc.
hot_rod
Re: Need help with Radiant How to go laying panels over existing floor
I have to admit the radiant walls make me nervous. I want to put labels on the wall “do not drill or nail - buried radiant piping”. 🤣😀🤪
PC7060
Re: Adding a radiant manifold to existing single zone loop
Not a condensing boiler.
Look at the vent pipe. A condensing boiler would use a plastic vent pipe because all the flue gas condensation would rot the galvanized vent connector away in a year. According to the manual this is a better way to do the near boiler piping if you want less problems with air in the system.
Assuming that you are connecting to standard Baseboard heating units with 3/4" copper tube. The circulator on the return indicates the installer didn't read the manual and followed the directions his father who taught him to do it that way.





