Best Of
Re: Low Water Cut-off Sensor RB-122-E Probe Replacement
> Thank you. Will keep for my records, and see if my technician follows all the steps in the spring. :-) I don't want to learn the trade using my own boiler.
That's how I do it. It's not a code that must be adhered to.
Some might want to purge.
As long as the heat works, pressure maintains, and the burner circuit opens on limit, then it's all good.
HVACNUT
Re: Combustion Analyzer Calibration
Yes
Trutech is the best for calibration. Coupon "NCI2025".
But not necessary but every 2-3 years at most.
Re: Hydronic w/ radiant addition - design question
You can find your outdoor design temperature here:
Re: Switch vs VFD for submersible well pump
If you are intent on spending money, your funds would be better spent on a single speed submersible and install molded plastic round tank with a float switch, timer and a small jet pump to deliver water from the storage tank to the home appliances at a much lower pressure with greater flow and not worry about it??
The well pump feed pipe would pump water through the drain tapping of the molded tank and the piping from the tank to the home would come from the tanks drain tapping as well off the same tee. The limit switch would also be inserted through the lid of the tank.
It is better for a deep well submersible to let run flat out and spool down to a gradual stop anyway to reduce the amount of torque to almost none and put less stress. on your drop pipe and pump wire.
Deep well or multistage turbine pumps were designed for pumping light sweet crude oil in their original use and then for water well pumping. The use of a timer to control the submersible pump would let you fill a storage tank until it is full over a long period of time and then the float switch would control the operation of the submersible only when the float switch is low for a minute and shut off and then restart in an hour or two hours and simply run for one minute for each cycle.
Your new submersible pump will last longer and the storage tank will allow you to store more water that you would typically use and the jet pump that feeds water to the water appliances in the home can provide more water if needed at a lower pressure putting less stress on your homes piping.
Re: Steam Boiler Pressure & Some Of My Adventures
Re: Steam Boiler Pressure & Some Of My Adventures
Don't bother I found a Gay-Lussac's Law Calculator and convinced myself that it is probably mostly full of trapped water. Or a mechanical issue, I've seen other gauges suffer the same erroneous readings fate. Never had the opportunity to do a Postmortem.
Re: HVAC in New Construction in 2024
@Hot_water_fan , I'll let others research and speak to your questions. For your reading pleasure, here is an article Investor-owned utilities could spend $1.1T between 2025 and 2029: EEI . It's important to realize the rapid electric rate escalations in New England, New York, New Jersey all happened before AI data centers became a focus.
Roger
Re: HVAC in New Construction in 2024
Thank you, @Hot_water_fan - the link has many of the details you request, many of which speak to electrification price increases in the Northeast (the article is pre-AI). I would hope that every effort is being made to keep energy affordable.
Roger
Uncovering the Truth about Sooted Boilers. This weeks video
As we enter the heating season, I wanted to talk about the dangers of soot on a boiler and how to safely remove it.
Re: Hot Water Boiler Rattling at Start of Heating Season
WoW that is impressive !!! Sounds loudest at the gas valve. Kind of wonder what the burner flames look like when that is going on. While it is happening I'd probably disconnect the wiring connector at the gas valve to see if it instantly goes away.


