Recent content by ejk52d

  1. E

    In-floor heat: What's your fuel cost?

    Heat loss is at design temp your building is only at design temp a day or 2 per year. Water heaters are not 80% they are closer to 70%. All except condensing or on demand.
  2. E

    radiant floor heat not supplying enough heat

    What type of perimeter slab insulation do you have? what model water heater do you have? I have heated 10000 sq ft with 145,000 btu in N IL somethings not right. If your picking up a large amount of passive solar during the day then your outdoor reset should be compensating for the gain. where...
  3. E

    In-floor heat: What's your fuel cost?

    60 miles due west of Chicago. He claims over 13 years that he has had only a couple of bills over 200 a month.
  4. E

    In-floor heat: What's your fuel cost?

    I have been installing radiant since 93 and have jobs that are 8 btus per sq ft up to 50 btus per sq ft. Depends on construction quality and type. Trends that I have observed in shops and garages are...Foam board works much better than bubble wrap or tarps. Small garages work fine with...
  5. E

    Styrofoam board vs Dow foam board

    What do you mean by footer? You could put some on the OH door.
  6. E

    What size heater do i need 40x60

    Where is the building located? Any perimeter slab insulation? How much insulation in the ceiling? What temp do you want to maintain? Do you need it to go from 40 to 65 quickly? I highly recommend a radiant tube heater over forced air. Heat objects not air.It will use at least 30% less fuel to...
  7. E

    natural gas line - cost to install

    Yes it can be installed through a conduit underground but not direct buried and at that point the extra labor and materials makes it moot. Use the proper materials for the job. Any chance the house with multiple gas leaks after the strike had imported pipe and fittings?
  8. E

    frost under insulation on garage walls in maine

    Walls are never vapor tite. Moisture moves through walls from warm to cold no matter what. Be careful not to trap moisture in the wall which is what you will do with the 6 mil. If you put kilz on the outside you have slowed the ability for the wall to dry to the outside. Moisture behind the...
  9. E

    Styrofoam board vs Dow foam board

    Looks good Blkctsv05 A little insulation malkes a huge difference when compared to none. The foil and the radiant go hand in hand.
  10. E

    Styrofoam board vs Dow foam board

    Here the cost difference is at least 80% per inch and about 40% on actual r value. Last job had 1.5" eps $12 and xps at $20 per sheet, and 2" eps at $13. I've got 3 quotes for xps on 85 sheets and they range from 20 to 22. There are a lot of local producers of eps scattered through out the...
  11. E

    Styrofoam board vs Dow foam board

    I would look some where other than marketing claims to get real world long term performance. 20 years ago when I started installing radiant heat as a contractor I believed that XPS was the only product that worked for slab insulation and below grade applications. Not so, EPS and XPS both have...
  12. E

    Styrofoam board vs Dow foam board

    Glue is about 15 a can and the gun is 45... last job I used 5 cans for 80 sheets. I apply the adhesive for 4 to 6 sheets so it sets up a bit and then make sure you get good contact. you can also use the gun for spray foam for cracks. Are you using 2 bys so you can install drywall or plywood? I...
  13. E

    Heated slab, how to insulate at garage door?

    2 xps or high density eps cut on 45* to 1" wide at the top and sealed with a pourable sealant....http://www.wrmeadows.com/deck-o-seal-150-two-part-pourable-joint-sealant/ this is directly under the garage door ..I will try and get a pic.
  14. E

    Natural gas or electric heat for 30x40

    25 years in mechanical and HVAC and I cannot recommend a non vented appliance... you have chemical reactions taking place and if it the burners get dirty it will produce co. I would recommend electric radiant panels as they use 1/2 the electricity of an electric furnace. They are also much...
  15. E

    natural gas line - cost to install

    CSST is for trac houses its not a premium product...its a labor saving method that is starting to have problems..such as lightning and proper bonding. It is not rated or approved for underground or wet locations by the manufacturers or by UL. HDPE is the most trouble free underground piping...
Top Bottom