Best Of
Re: Experience I had with a boiler tech and what I learned along the way.
That was a salesman, not a tech. What part of the country was this?
Re: Water line disappearing
PS water does not get pulled from the boiler its leaving most likely due to the boiler being dirty
You tossed this line in there @clammy and I just wanted to say I agree completely
Re: Looking for advice on sizing 2 pipe baseboard
Hmm. I'd be tempted to do the whole first floor in one series loop. Starting with the bathroom and ending in room 4 bedroom. Generally people want bedrooms cooler and bathrooms warmer. If bedroom 4 faces SE, even better.
Re: Diverter-Tee Q&A
you can't really control each emitter individually because the diverter tee divides the flow between the main and the emitter on the diverter port. if you block or slow the flow in the emitter you reduce the flow in the whole loop.
mattmia2
Re: Drums of water in the basement as a buffer
Most any material can capture and store heat. It will always come down to…
Is the juice worth the squeeze?
hot_rod
Re: Sizing of Hydro Coils: Can you go too big?
Yes but bigger coil means a bigger box to fit it in =bigger air handler.
You want when heating to keep the discharge air temp above 110 minimum or you will feel like cold air movement.
Re: B & G Dou - Flo Valve??? Main loop Supply/ Return and Secondary loop Supply / Return
So you asked them about there product and they laughed at you.
No wonder B & G is not the company they used to be. Overpriced, stuffed shirts. Let Taco and Caleffi eat their lunch.
Let them continue to lose market share.
Re: Packing Heat
"During the season when heat is needed, thermal can capture 4x as much energy as PV."
But in the season when heat isn't needed, you need to have an elaborate scheme to dump the heat that thermal is capturing, whereas with PV you just return it to the grid. And you need to have an elaborate scheme to keep your system from freezing. And if you size your thermal system to meet your full heating load on the coldest days it will probably be 10x too big in the summer. Even just for domestic hot water thermal systems have trouble aligning availability of sunshine with the load, because most people have their biggest demand for hot water in the morning, when the sun hasn't been out since the previous evening.
Solar thermal is dead. It doesn't pencil out.
Re: Snow melt slab insulation
it's not ground heat that rises, heat does not rise, hot air rises. Heat moves to cold, the rate of that heat transfer is partially dictated by the delta T. so while the ground temp of lets say 50f is warmer than the unheated slab temp of lets say 20f, when you put a heated slab into the equation the heat from the tubing approx 110f is greater than the 50f below and will also want to transfer to the ground, wasting your BTUs, the thermal break from the insulation helps reduce that unwanted heat transfer into the ground, and direct the BTUs to where you want it, the slab. So while the contractor in question might feel better about it, in reality he just wants to save a few bucks on install, cost his customers more money, and made up a story about the heat from the ground helping melt the snow to make himself feel better about it. This isn't even taking into account that generally the ground at the level of the tubing is not really 50f either its closer to air temp
GGross
Re: B & G Dou - Flo Valve??? Main loop Supply/ Return and Secondary loop Supply / Return
It's a mixer for primary secondary piping. See Idronics 7 for more details. Paging @hot_rod as Caleffi probably has a replacement.