Joined on October 13, 2004
Last Post on December 2, 2013
@ November 12, 2013 10:39 PM in Radiant floor heat not heating properlyIf a heatloss calculation was done? No mention of it.
Was slab insulated?
@ November 12, 2013 6:41 PM in clear pipe, pumping demoDisplay Like Mike wondering how you do the flow visual? Dye injection some where?
@ November 12, 2013 6:35 PM in Weil McLain Wall Hung WEMECO110Remember in high temp applications you dont always need say 170* average water temps for all the heating season. This is where a mod/con can save even in high temp apps. Most of the savings is in the ability to modulate the burner. The condensing is a little more icing on the efficiency cake. Being able to run avg water temps to say 140 if radiation is plentiful is a savings.
@ November 12, 2013 6:27 PM in Radiant staple up insulationThe Rim joist is what your floor joists tie into on top of the foundation.
This area has a high heat loss, and can have infiltration. Use spray foam in the areas between the joists over the foundation. Or you can cut XPS and use great stuff to seal the edges of the XPS. Sealing this area prevents warm air currents from condensing on the cold surface of the rim joist. This holds true more so IF you leave a 2" gap between insulation, and tubing detail
As far as type of insulation, and how much in the rest of the joist bays. Cost may dictate type, along with application depending on mechanicals to navigate with in each bay.
Remember R 1 is 100% better than R 0. So anything you chose is better than nothing.
Spray foam has High R value, but can make a mess out of tubing plate detail, foam can expand between floor, and plates breaking the conduction link to the floor, along with mechanicals in the bay areas.
Fiberglass is probably the cheapest with the lesser amount of R value per inch along with convection currents with in the fiberglass its like a big air filter.
Denim pricey, but very dense product, and Green.
Rock wool is sorta between denim, and fiberglass.
There is another product called Roxul comfort batt wich will give you an R 30 with a 7.25 inch thick batt.
@ November 6, 2013 9:01 PM in Infloor max cement temp ..Your doing fine if cost is a concern for your climate.
Are you struggling to hit a higher set point ?
150 would be a non insulated slab with a high r floor covering scenario with a high load.
@ November 6, 2013 8:54 PM in Lochinvar Knight KBN 399 Heat Exchanger FailureCould have there been near by refrigerant leaks?
@ November 6, 2013 6:07 AM in Infloor max cement temp ..Slab is fully insulated with 1' of perimeter insulation.
Is this NG, or LP?
Garage door opening frequently?
And yes where are you located?
@ November 5, 2013 11:43 PM in Infloor max cement temp ..I like the urinal nice touch!
You should not need to come close to those kind of temps unless slab is not insulated, and you want to work buck naked in there.
@ November 5, 2013 7:34 PM in Knight boiler problemsOn why yo,u need to maintain a mod/con properly!
@ November 5, 2013 6:01 AM in Fiber OpticsLike surgeons use would be the only size that could snake through smaller id pipe and fittings. Goggle them I'm sure their pricey, and the leak would have to be quite obvious.
@ November 5, 2013 5:54 AM in Fiber OpticsCarries light waves. I really don't know how that would work for leak detection unless he is thinking about a camera for viewing.
@ November 5, 2013 5:43 AM in What type of boiler is this??His hot water system is gravity.
That's a Weil McLain boiler probably once coal converted to gas.
@ November 3, 2013 2:22 PM in code man says my DHW tank has to go as a heat source What now?Seriously!
Brian your research should lead you to the wall tankless WH are not boilers. Use the right tool for the job. Enough said.
Look closely at the warranty for closed loop heating , and that should be enough to note they are not designed for that purpose.
The taco xblock would work IF he ditched the tankless, and converted the tank style WH for domestic use.
Now the xblock is expensive, and I believe the tank WH is a little short on output. Using a HX will make it come up even more short on output due to efficiency loss of the xblock.
@ November 3, 2013 11:33 AM in Rinnai RC80HPIOf emitters besides RFH would operate at a 115 supply, and 73 return?
Possibly fan coils?
@ November 3, 2013 9:58 AM in Rinnai RC80HPIThere is no coverage when used in a closed loop heating system.
That should be a red flag in itself.
Also don't be fooled by the rated maximum output. It's a whole different game when used for space heating. Their outputs are based on high deltas not found in hot water heating systems.
@ November 2, 2013 6:05 PM in Knight boiler problemsDid you test the material to see if it is magnetic?
Did you personally witness the yearly cleanings
I think you had fouled intake air. Or some pretty fouled gas mixture.
@ November 2, 2013 5:35 PM in code man says my DHW tank has to go as a heat source What now?Sorry to hear that. Price other brands see what you get.
@ November 1, 2013 6:16 PM in HydroMXFrom what information that y you provided they are hanging their hat on heat transfer first. Non fouling to the system second. What if it does create issues a refund on the potion ?
What lab tests were done strictly heat transfer? What time frame was observed with no system issues?
What types of piping? Types of hydronic systems?
I'm share the same thoughts, and right now I see radiator stop leak in a nano form.
People here nano technology, and think it is high tech.
Think about HX fouling. Bad Water deposits alone can create havoc.
@ November 1, 2013 7:13 AM in HydroMXIs what happens to the suspended nano particles when the system is idle? Especially over the non heating/cooling time frames.
@ November 1, 2013 5:57 AM in Looking for alternatives to heating my old, large houseA pellet burner is cheaper than fuel oil.
Insert foot in mouth.
But I will say that fuel type has gone up a lot from its infancy.
@ October 31, 2013 9:06 PM in Looking for alternatives to heating my old, large houseBill
Its the supply and demand thing of course.
But I remember when pellet, and corn burners first came out the fuels were cheap compared to other energy sources NG LP OIL etc. Then those pellet burners took off, and so did the corn, and pellet prices to where NG is cheaper than burning pellets. Corn has other factors I understand. Who would a thoght a guy could make a killing in saw dust..
My buddy bought a pellet BBQ 1K quite nice to cook on, but the assorted wood species pellets are not cheap.