Alan (California Radiant) Forbes
Joined on August 14, 2009
Last Post on July 6, 2014
@ July 6, 2014 2:11 PM in Slab Sandwichto the owner was to install the tubing in the structural slab; it's only 4" thick. Maybe not as responsive as a 2" slab, but plenty quick enough with a mod/con boiler and outdoor reset.
The owner has had five radiant contractors out to bid his job; some don't mention the slab detail with others recommending either a 2-part slab or a single slab.
Thanks to both of you for great recommendations. Hot Rod: I've never heard of "external restraint cracking" and we may not get that here with our mild conditions.
@ July 2, 2014 11:24 AM in Slab SandwichI have a customer that is remodeling their house, pouring a slab downstairs and they are considering different proposals from radiant heating professionals. I'm only consulting at this point and they are having a tough time figuring out what is the best and most cost effective way of constructing their slab as recommended by different contractors which are:
Scenario 1: Four inch structural slab, 1" insulation, 2" topping slab with PEX tubing
Scenario 2: One inch insulation, 4" structural slab with PEX tubing
Figuring a mod/con boiler with outdoor reset controls, what would be your recommendation?
Thanks in advance.
@ June 18, 2014 11:54 AM in Made in AmericaI went into the post office yesterday and purchased some beautiful new commemorative stamps.
@ June 10, 2014 12:39 PM in Ever seen this rad?see if there is the name of the manufacturer somewhere on the radiator.
@ May 29, 2014 11:58 AM in Low pressure in boiler but zone 1 worked still worked while zone 2 did not?another reason. Ten pounds pressure is plenty for a 2-story house.
I'd say there's a pump or zone valve not working, air in the line, bad thermostat............
@ May 19, 2014 8:23 PM in How about this new product?http://www.us.kohler.com/us/catalog/productDetails.jsp?productNumber=1954
Click on the yellow movie icon.
I picked up a couple before they go viral.
@ May 17, 2014 5:54 PM in Time for a new threader....I've had two 300's and they are my favorites over the years. The first one didn't wear out, but got lifted off the back of my truck in East Oakland. I didn't make much money on that job. Now, I have a REMS Amigo II which is a handheld, but I hardly do any large gas jobs anymore and along with the advent of CSST (flexible) pipe, I hardly ever pull it out of the case.
I'm not as much of a craftsman as others, but if I encounter a non-plumb or non-level take-off, I install a swing joint to make my work straight.
@ May 16, 2014 11:26 AM in Old heating stuffYou've got some treasures there.
My basement is full of old faucets, fixtures and other oddities that you don't see anymore. Hopefully, it will be worth something to someone so that I can pass it on before I pass on.
@ May 15, 2014 12:50 AM in Congrats, Ron Jr !Headlights or not, Ron, Jr. is a class act. Active here on The Wall, he has shown himself to be selfless and giving, an altruist and one of the few that proves himself, over and again to be only interested in helping others.
We can all learn a lot from Ron, Jr. What a guy!
@ May 9, 2014 1:50 PM in BTU's Needed?But it's not unusual for bids to come in without heatloss calculations. The questions is, who do you choose to do the work.
If I were you, I would call a reliable contractor and pay to have him do the heatloss calculations for your home. If you click on "Find a Contractor" above, there seems to be many in your area and I recognize a few of them who are quite active and knowledgeable here on The Wall. With these calculations in hand, you can give copies of them to other contractors that you ask to bid on your boiler replacement. That way, everyone is bidding on at least the same calc's.
The contractor that does the calc's. may even give you a bid and offer to credit back the charge for the calc's. if he does the work.
@ May 4, 2014 9:31 PM in Pipe size to cast iron radiatorsventuri's on a series system.
It may work as long as the radiators on the 1/2" PEX loop are less than 15,000 BTU output (total).
Typically, the best way I like to pipe radiators is 2-pipe, indirect return.
@ May 3, 2014 11:10 AM in Heat Load assessment different from quuted Boiler Sizelooks about right for a new 3,000  house; double-glazed windows, fully insulated walls, floors and ceilings. But then again, I am always floored when the numbers come in low and they always seem to do just that. Over the years, I've trusted my numbers and I've never under heated a house.
@ May 1, 2014 8:51 PM in White-Rodgers recallPhone call from my customer:
Alan: The thermostat you just installed burned my house down. : )
My favorite thermostat is their 1F80-0361 and it doesn't seem to be one of the pyrotechnic ones.
@ May 1, 2014 8:41 PM in List of small mod/consSWEI comes through again. That little tidbit of information is a bullseye.
@ April 23, 2014 6:50 PM in Are you in the market for a Thermal Imager?i series cameras. Any upgrades : ) available? I have an i4.
@ April 21, 2014 1:44 AM in SizingYou want a boiler that has an I=B=R rating of 51,000 BTU or as close to that as possible.
@ April 17, 2014 1:53 PM in GlycolWorking in California, we have never had to use glycol on any of our systems, but a customer has asked me to take care of his solar system; monitor the pH and replace the glycol as necessary.
I haven't the foggiest idea how to do this. Any suggestions, youtube videos or products recommendations are welcome.
Come to think of it, I don't see it discussed here on The Wall very often. Is it that simple?
@ April 10, 2014 11:26 AM in Thanks,Dan H.!I applaud scholarships for those that want to learn and work. And I applaud those that work hard to create those scholarships.
Thanks for letting us know, Robert.
@ April 8, 2014 9:16 PM in Ratings for old Modine convectorsCheck out the attached Modine data sheet. It has the outputs of 8" x 60" convectors, but nothing 9".