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hot rod

Joined on August 27, 2007

Last Post on July 30, 2014

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that is common

@ July 30, 2014 8:51 PM in Evenflow Ball valves brass 600psi WOG

to stamp the country of origin under the handle. Have you contacted Everflow, I suspect they will want the failed ones back for evaluation.

Send a new one out to a lab for testing, should be easy to find the fail point on a test bench.

What is the application? Is it possible the pressure exceeded 120? Any gauges on the system.

do you mean EverFlow?

@ July 30, 2014 4:31 PM in Evenflow Ball valves brass 600psi WOG

They are located in NJ, could be a China import, it should be labeled country of origin, but there are way around that,

"PRC" is one way I have seen around putting China on a valve, People's Republic of China.

You can still get domestic brass, if you request it. Most of the big name manufacturers offer import and domestic.

Or top quality Italian ball valves.

What was the failure?

I really like

@ July 29, 2014 2:57 PM in thread sealant

this 3- Wrap tape from Mill Rose. You really do not need to add any dope with it. Great for rough threads, and comes off the roll better, to the very end.

how much?

@ July 29, 2014 2:48 PM in Advice on adding zones

flow will you be trying to move.

Assume you boiler runs 80% efficient, you have around 125,000 BTU available to move.

A heat load calc would determine what the home actually needs for BTU/hr on design condition. Could be that boiler is oversized for the load to begin with.

Assume the main area needs 90,000, 9 gpm at 20° ∆T

Here is what the pressure drop with a 3.5, and a 7.5 Cv valve, looks like. The third box shows pressure drop with a known Cv and flow rate.

So you need to do some number crunching to get an exact answer to your question, a load calc to start. It's good info to have, an accurate load calc, everything sizes around that critical number.

Those old, large pipe conversions generally do not need a lot of flow, or present much pressure drop.

sensor well

@ July 29, 2014 9:28 AM in Boiler Room Layout Mock-up – reasonable, flawed or both?

is that brass plug at the top of the Sep 4 pictured.,

Best air & dirt removal is with a media inside the LLH. Also magnets can only be applied on the outside of brass or plastic components. You would not want to strap a magnet on a steel LLH.

how large

@ July 28, 2014 10:42 PM in Bathroom heating options

or a radiator do you want to build?

I believe 24- 30 wide with type M would be fine. No towel I know of could bend that, nor a small child.

The key would be solid mounting to the wall studs.

You can also make a nice towel rad with these base branch manifolds from Watts radiant.

The base branch model is 48" long and has 1/2 brass sockets to take 1/2" copper. either 3 or 4" on center.

They use to make an all brass version, brass tube, brass sockets

Cap two opposite legs, supply lower bottom, return from top, add a small hygroscopic vent at the top.

Here is a section of an old one I have kicking around for example.

DIY towel bar

@ July 28, 2014 2:50 PM in Bathroom heating options

I built this super-sized one several years ago. Square and round steel tubing, a holesaw and cordless drill. I had a professional welder do the MIG welding. Powder coated white by a neighbor with that equipment.

Easier still is copper tube and tees. If you use 95/5 you can powder coat copper also. I have a powder coated, copper coat rack that has been outside for 8 years or more.

They need to watch the oven temperature carefully the powder melts real close to the solder melting temperature :)

Better air and separation

@ July 28, 2014 2:33 PM in Boiler Room Layout Mock-up – reasonable, flawed or both?

agree with Chris, look into a multi purpose device to provide hydro separation, air, dirt, and magnetic separation.

Also the expansion tank connection needs to be were all pumps "see" the PONC.

More reading in this just released tech journal.

Also if you don't want to give up on the TRV at the rads, Anvil sells double threaded left hand nipples. Cut the threads off, weld in a 1-1/4 X 1/2" bushing. It's easy to build those LH conversion fittings.

An example, before welding.

Bio-Therm green house systems

@ July 26, 2014 7:35 PM in Radiant Heat Matrix Other Than Concrete.

I installed one of these systems in a hydroponic green house many years ago. Fired with a wood boiler, here in Missouri.

The tube was installed under the gravel floor, with an additional unit heater for extreme days. You might look around their site for sizing and load info.

The heated benches make a lot of sense, keeping the root zone area warn not the entire structure.

GEO grip

@ July 26, 2014 7:26 PM in How Long

is a fitting developed for PE tube that does not require heat fusion. Available as brass or plastic, many configurations. Most often these are CTS as ice mentioned.

into 5 gallon buckets

@ July 26, 2014 9:26 AM in Cut oil tank in half, now what?

and most auto parts stores take used oil, antifreeze and solvents, for free.

If you have a Safety Kleen nearby they will take it and give you documentation.

Check with State, City, or County websites they usually have recycling centers for all sorts of stuff listed.


@ July 25, 2014 4:29 PM in Radiant Heat Matrix Other Than Concrete.

Is the most powerful way to move the thermal energy from pex tube. If you are considering a base rock type gravel, which has "fines" or sand that would transfer better than washed gravel

Really base rock is concrete without the Portland cement in the blend, and water to activate the mix

I too would use a concrete slab, gravel over if needed.

Be sure the tank you put in the ground is rust resistant. If it is steel, it needs to be coated like the underground LP tanks Also anode protection.

Almost looks like

@ July 25, 2014 8:51 AM in How Long

Someone tried to glue an electrical PVC ell onto it. The tube exposed to sun or UV for that long may not be in good shape,

could be the hx

@ July 24, 2014 3:01 PM in Lochinvar sheild HIgh limit problem

is getting limed up, check the temperature drop across the HX, see if it matches factory specs.

fun project

@ July 23, 2014 3:45 PM in Cemetery chapel improvements

are you going to be doing the work?

Maybe give the team over at Stack Plumbing and Heating a call for design or install help. They do a lot of those church conversions in the Cleveland area. Andy or Brian Stack.

haven't we all

@ July 23, 2014 9:31 AM in this tool, why didn't I

built up test gauges from cobbled together nipples and reducing couplings.

I like that this one tool covers 1/2- 2", the gauges are top quality and protected in a case with all the attachments.

A bucket full of throw-away gauges is not for everyone.

And a wrench pulling plumber has a chance to see a well thought out product make it into the trades.

When we did fire protection we had dozens of crappy test gauge setups scattered around the project, we spent as much time soaping and finding defective gauges as we did testing :)

Never had great luck flowing backwards through a boiler drain, they are not built for that use, I like the ball valves best for two direction flow.

Kudos to one of our own trying to offer a better mouse trap, and keep us in the wholesalers and out of the "can't build it cheap enough, third world products" box stores. Maybe he will retire to Florida with his success.


@ July 22, 2014 10:40 PM in Replacing electric water heater

how much DHW your family actually uses. Also if you have a dump load like a bathtub, a 40 or 50 electric may not catch up quick enough for your needs.

If a boiler replacement is in the future and solar, consider a dual coil 120 gallon tank with an upper element for back up. Upper element alone gives you the same as a 60 gallon electric tank. Solar into the bottom coil, and boiler into the upper.

Now you have the choice of 3 fuel sources.

Most anywhere in the US a properly sized SDHW will provide 60% of your HW need.
3 collectors with a 120 gallon tank works well for medium to large residential DHW loads.

Here is a 3 panel system, 120 tank, electric element back up, in MN.

Consider the solar now as the tax credits may be gone next year,

finished look

@ July 22, 2014 10:06 PM in drainback tank ideas

Turns out 11" IP pipe insulation has a 12" ID. Circles for the ends cut from sheet fiberglass stock, bubble foil covers for that NASCAR look.

Aluminum saddle to protect the fiberglass when hanging with strap steel brackets.

this tool, why didn't I

@ July 22, 2014 5:40 PM in this tool, why didn't I

think of this? A plumber in Ohio did.

A stepped tube that fits a variety of pipe sizes. The pieces are all nice quality, I used a lazy hand "tell tale" gauge to show this example. Mine came in a nice case with latches.

If I had a dollar for every test gauge manifold that I split, or stripped, or it rusted closed....

With care this could be a lifetime tool, at least the manifold portion.

Like a Runtal brand?

@ July 21, 2014 11:40 PM in Electric Baseboard Vs Hydronic Electric Baseboards

I like the looks of this type better than a finned type electric baseboard. There are also electric, fluid filled, panel rads available.

Or buy the small immersion element and build your own radiator. This has a 300W and mineral oil inside.

depends on the type of tank

@ July 21, 2014 10:55 PM in bladder tank total volume - who cares?

diaphragm tanks have a EPDM or butyl disc crimped into the tank. Notice that crimp mid-way on the tank. If that diaphragm is over stretched constantly, it can fail.

Systems that "eat" expansion tanks are often caused by undersized tanks, too much stretch causing early failure.

Bladder or "bag" tanks have a bag inside and can take just about the entire tank capacity without a problem.

run some numbers

@ July 21, 2014 6:27 PM in Radiant Heat Matrix Other Than Concrete.

to see what type of heating load the greenhouse presents.

I've never been able to make the numbers work. Mainly a lot of low insulation value walls and not enough floor square footage to cover that load.

Possibly some root zone heating, and some additional back up heat source for high load condition days.

I put an 80 gallon 1/2 insulated tank in my 6X8, warmed it with an evac tube solar collector. A 500W heatlamp is enough to keep the space above freezing, if the solar is not available for a few days. I have two glass walls, the rest is 4" foam insulation and the roof also, that helps with the loads, compared to all glass or plastic walls and ceilings.
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