Security Seal Facebook Twitter GooglePlus Pinterest Newsletter Sign-up
The Wall
Alan (California Radiant) Forbes

Alan (California Radiant) Forbes

Joined on August 14, 2009

Last Post on July 6, 2014

Contact User

Recent Posts

« 1 2 3 4 5 6 7 8 ... 41 »


@ January 9, 2014 12:33 PM in How do i get this down

I don't want anyone to get hurt, especially on my crew.  I hire a moving company for anything that scares me.  They move heavy things every day and know how to do it.


@ January 9, 2014 1:03 AM in Viessmann Vitodens 200 or Triangle tube prestige solo

I'd consider the TT Excellence combi boiler for heating and DHW and make sure it's installed with primary-secondary piping (compensating for over-sizing).  It's over-sized for your heating load, but just right for DWH as long as you are happy with only two or three fixtures being used at the same time, no more.

You seem to be in a load-boiler continuum (similar to a space-time continuum) that makes choices difficult.  I live in Berkeley, CA; half your heating load, 1 bathroom with a Viessmann 50 gallon indirect, a 50K BTU Munchkin and three people in the house.  We all get along really well.  With double the heating load and another bathroom, either the Excellence or the Solo 110 with indirect seems a marriage made in hydronic heaven.

How many people in your house?

How many

@ January 8, 2014 10:14 PM in Viessmann Vitodens 200 or Triangle tube prestige solo

zones do you have in the house? Or will you have when the staple-up gets installed.  If multiple zoning, I like the Viessmann for many reasons: modulation (6.5 to 1) and reliability being the most predominant.

The only time it really gets cold in Seattle is when the Seahwaks loose which is not that often.  Good luck in the playoffs................ except when they play SF.


@ January 7, 2014 11:41 PM in Honeywell Zone Valve failure. Hydronic oil fired boiler

sorry about the date code.

Sounds as though you are right on track to replace the operator. 

I'd be interested to find out if anyone has had problems with the valve.

Honeywell Zone Valves

@ January 7, 2014 7:05 PM in Honeywell Zone Valve failure. Hydronic oil fired boiler

You should check the date code on the round motor of the operator to see for certain if they replaced the valves.  I've seen it happen to leave the old cover on the new valve so they don't have to re-write the information.  The last two numbers will be the year manufactured.

I've replaced many operators over the years (two just today), but I've never had to replace the entire valve. They are extremely reliable.

By the way, they sell just the operator by itself: Honeywell 40003916-026 (wire leads) and also the motor by itself: Honeywell 802360JA.

Like anything mechanical,

@ January 7, 2014 12:12 PM in Life Expectancy of VDT

it might be one year, it might be 10 years.  Especially with the variable speed, delta T pumps; they haven't been around that long.

If it were my system and I lived in a cold climate, I'd install one in series with the one you have along with isolation valves so that it is ready to go when the other pump fails.  Or have both pumps on-line with a lead-lag control that switches duty between the two, switching every day or so. They would both get equal use and the likelihood of both of them failing at the same time is slim.


@ January 4, 2014 5:21 PM in stick with recessed cast iron or tear out and go radiant?

Somebody else will have to answer your technology questions, but what kind of floors and subfloors do you have? Hardwood over Doug Fir? Tile over plywood? Carpet over plywood?

You led us on : )

@ January 2, 2014 8:00 PM in Low heat from hydronic baseboard radiators

Yes, those tees are way too close together.

I'd install a 1-1/4" full-port ball valve between the tees and throttle flow down until your convector starts to heat.

How many more do you have like this?


@ January 2, 2014 1:24 PM in Low heat from hydronic baseboard radiators

Thanks for hanging in there. Those pictures will help us see what's going on.  Take as many as you can, but specifically, we need to see the tees which feed the radiators, both on the supply and the return.

It sounds as though you have Mono-flow tees on the supply and return - that's good.  It also seems as though you have good distance between the tees which is good as well since this will encourage water to be diverted down through the radiators.

At this point, we want to make sure the Mono-flow tees were installed properly.


As I remember,

@ December 30, 2013 5:55 PM in Warmboad Vs Thermalboard

Warmboard is best for extracting heat and Thermalboard is not far behind.  Engineering tables should be available for both somewhere in their literature.

Noise reduction is accomplished by using the tubing with the quietest oxygen barrier.  I seem to remember always using Uponor tubing.


@ December 30, 2013 5:05 PM in Low heat from hydronic baseboard radiators

I don't think a larger circulator will work.  You will end up with a higher electricity bill, more noise from the water going at highway speeds and convectors that won't heat.  Adding circulators on the branch piping will work, but where will you install them.  You will have to open up the walls and install access panels for each pump and then run power to each pump, no?

So, you installed this system 13 years ago and it hasn't worked since or is this something new?

Flow Control Valve

@ December 27, 2013 7:41 PM in Condensate Hot-Water Heating FAQ

Spring or swing check valves will work as will flow control valves like this one:

At this point

@ December 26, 2013 9:59 PM in Bleeder valves stolen!! Grr...

we need to know if you have a hot water or a steam system.Some pictures of the boiler and near-boiler piping would help.


@ December 26, 2013 12:02 PM in Low heat from hydronic baseboard radiators

System design is crucial on a Mono-flow loop. Your ceiling loop has no problem with the upstairs convectors, but the hot water is buoyant and doesn't want to feed the lower floor convectors.

Thanks, guys!

@ December 24, 2013 11:36 AM in Lost Wires

I was able to use the end switch wire for the thermostat since there is a pressure differential bypass at the boiler, but the Fluke is on order. It seems a necessary item for my hydronics toolbox.

Lost Wires

@ December 23, 2013 2:48 PM in Lost Wires

I just picked up a job where the owner did his own work. Unexpectedly, halfway through the project, he died.  There is one zone that is wired to the zone valve controller, but the wires do not appear in the room.  I'm guessing they somehow got buried behind the sheetrock.  Is there an instrument that can be connected to the wires in the boiler room that will send a signal through the wires that can then be picked up with a receiver at the other end?

California Radiant

@ December 23, 2013 12:08 PM in Recommendations for new flue gas analyzer- URGENT!

It's been my handle ever since I started posting on The Wall, just to let people know where I'm from.

I had the url for years and then dropped it only to be picked up by a company with the same name in Santa Cruz.

Thanks, guys?

@ December 22, 2013 7:42 PM in Recommendations for new flue gas analyzer- URGENT!

Per your recommendations, I purchase a Bacharach Insight from TruTech.  It's under the Christmas tree and I can't wait to break it in.

Any code book

@ December 22, 2013 12:43 PM in High rise hydronic heating and chilled water piping supports

should have guidelines.  Out here, we follow IAPMO.

Snug it up,

@ December 21, 2013 3:24 PM in Connecting circulators - flanges

but don't wail on it.  Turn on the water and if it leaks, snug it up some more.

Low Down

@ December 21, 2013 3:19 PM in My opinion of NEST on steam

Thanks for giving us the low down on the Nest thermostats.  I was considering purchasing two of them for my radiant system, but I don't want one that will lock up on me or only respond when I wave my hand in front of it.

Also, displaying the setpoint vs. the actual room temperature is a drag.  No way to change that in "settings"?


@ December 21, 2013 3:15 PM in Hot water baseboard heating

Would it be possible to start a new thread offering a brief synopsis of the problems with this newly installed system?   I find it hard to read through so many posts to get to the true meat of BBHH's problems.

The main thing I picked up was that the pump for the indirect was piped wrong. I am also blown away by the installer's attitude and that he won't come back to fix things that BBHH is finding troublesome.  Has the installer made an appearance here on The Wall?
« 1 2 3 4 5 6 7 8 ... 41 »