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    If you are going to stick with a gas fired forced...

    If you are going to stick with a gas fired forced air furnace, than placing it in the garage should not be a problem. Tying into your existing ductwork and insulating any runs may be the challenge....
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    take a look at Grundfos 15-58

    If you are trying to span between a taco 007 and 010 take a look at the small Grundfos three speed. At 10 feet of head you can get 6 gpm on medium and 10 gpm on high with a 15-58.

    You will have...
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    radiant floor in garage

    Terry--

    I think you are fine with the choice of a used boiler. It still may be a little large for your well insulated garage and low space temperatures, but the high mass floor is is self...
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    Anthony Check out this video link at TACO for...

    Anthony

    Check out this video link at TACO for lots of good information about primary/secondary piping, closely spaced t's, and multiple temperatures.

    ...
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    Rob-- Dana's comments are right on the money....

    Rob--

    Dana's comments are right on the money.

    How are you controlling the slabs? In my experience with high mass slabs, there is better control by using slab temperature alone with an embedded...
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    canadiabel-- One possible way that the well...

    canadiabel--

    One possible way that the well which holds the aquastat probe is not sensing the boiler water in the loop to the water heater is because it becoming air locked.

    I think that the...
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    re: reverse bufer tank

    RJAD--

    In my opinion, the best way to lower the return water temperature and improve the condensing efficiency is in the design, sizing, and flow rates for the radiation. Using outdoor reset to...
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    Giles-- You will have significantly more...

    Giles--

    You will have significantly more control over the system if you use a digital thermostat with adjustable cycles per hour (cph) and internal control logic for pulse width modulation of the...
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    E-max flapper or conversion float

    Is anyone aware of a way to purchase the e-max flapper, or the float to convert a g-max to the 1.28.

    Thanks.
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    It's a heat pump water heater.

    It's a heat pump water heater.
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    #1. Depends. Some systems are set up for...

    #1. Depends. Some systems are set up for constant circulation, but you could have a failed relay or some other problem in the controls which has left the pump constantly running. More information...
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    The heat transfer to the emitters tends to go up...

    The heat transfer to the emitters tends to go up a little bit with flow rate if the incoming water temperature is held constant. I believe it has to do with the turbulance of the flow. There is a...
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    Kyle-- It's not easy to tame an oversized...

    Kyle--

    It's not easy to tame an oversized system which is short cycling.

    There are basically two ways in which thermostats run, and you need to determine how your existing control runs and what...
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    What is the model number of the thermostat? ...

    What is the model number of the thermostat?

    What other control settings besides temperature are being used--for example "cycles", or "differential".

    When the heating is not running normally at...
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    Last year, I completed a complete electrical...

    Last year, I completed a complete electrical remodel where we used six inch Halo cans for general lighting. These were the choice of the electrician who overall did high quality work. We used white...
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    e max flapper

    Does anyone know a source for the e max flapper. I would like to replace a gmax flapper on an ultramax. The e max flappers are not available in Terry's on-line store, and I haven't seen another...
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    EMAX flapper in ultramax

    I see references to an Eco ultramax version and it looks like the same flapper as in the Eco Drake replacing the standard GMAX red flapper.

    Has anyone tried replacing the flapper in an ultramax...
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    What happened this week after the switch back. ...

    What happened this week after the switch back. Inquiring minds want to know ;-)
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    Mikey-- If the problem is somewhere else in...

    Mikey--

    If the problem is somewhere else in the house and not on the two specific circuits which fault, how can the problem occur exactly seven days after the breakers are reset? You may be...
  20. According to the Grohe literature, they are both...

    According to the Grohe literature, they are both designed to compensate for water pressure fluctuations.

    Grohe calls both the thermostatic and pressure balanced valves "Safety Valves", and they...
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    Here's a link to a report from Brookhaven...

    Here's a link to a report from Brookhaven National Laboratory about condensing boilers used with hot water baseboards and indirect hot water heaters.
    ...
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    Brian-- "The efficiency of heating systems in...

    Brian--

    "The efficiency of heating systems in affordable housing is an issue that will take on increasingly more importance as time goes on."

    You are to be commended for trying to make this...
  23. Palladio-- U.S. Federal regulations (and...

    Palladio--

    U.S. Federal regulations (and energy saving common sense) limit max flow to 2.5 gpm from a showerhead, so gpm through the valve is really not an issue. In my experience a volume control...
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    Mike-- You have some more calculations to do....

    Mike--

    You have some more calculations to do. There is no simple rule of thumb, and the heat exchanger manufacturers or suppliers typically provide some analytical support.

    You know that you...
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    Luigi-- I recommend that you take a look at...

    Luigi--

    I recommend that you take a look at the Triangle Tube Prestige line. They have SS heat exchangers and a good reputation. I have a TT 110 which has worked flawlessly for two heating...
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