electric radiant heat 120 vs 240 need advice
rileysmom17
14 years ago
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bus_driver
14 years agolast modified: 9 years agoRelated Discussions
propane heat vs. electric heat
Comments (39)GROUND UP TO U: (vs. in-ground) Since 1980: about 7,ooo btuh [separately in a ditch] in damp clay as described below can be extracted from 52-deg earth with every 500 ft of 3/4" Poly-Black tubing and circulated easily [up to 5-3/4" pipe runs with a header to 1.1/4"] hdpe pipe 160 psi thicker sdr-9 www.geothermal-pipe.com www.flowcenterproducts.com on one 1) 1/6 hp (B&G pl 33) if the loop is ~ 35 degrees (chilled) by/on www.hydro-temp.com (ARKANSAS) a heat-pump, having ~ 18% methanol antifreeze by volume ~20% glycol, for usable(net) output per the following: if at a depth of ~6-to-7ft, lower piping runs (back-in-bottom-of-ditch-tightly-packed) x ditch length of 245 ft, up to 3-pipes in 2ft ditch and on the bottom of the ditch, up to 5 piping runs (2 ditches) on 1) pump 1/6hp damp clay soil, and returns back in same ditch as follows: RETURNS are on top at a depth of ~5ft (4.1/2 settles to 5ft in backfilling~) like a 'hair-pin over under design on side view... each ditch may support a "2-TON" Hydro-Temp, which is equal to others' 2.2/2-"ton" rated units that use higher than normal blower speeds, or water:water with over pumping to just get "high" ratings... LOOK at COMPRESSOR labels: they should have a 19,000-24,000 btuh compressor IF VERY WET, 52-DEG SUPPORTS A 30,OOO COMPRESSOR IN THAT DESCRIBED DITCH FOR RATINGS @ "3.0-TONS" YOU GET ONLY ~85% OF ANY COMPRESSOR ON ~34-DEG LOOPS... Directly GeoLoops : ECL's (Earth Coupled Loops) are generally producing only ~ 4,200 btuh at 40-degrees/avg and high volumes of ~ 3.1/2 gpm per 3/4"pipe and no antifreeze keeping things obove 38-degrees (ie @ 37 entering ECL, from loads applied/ with or without a heat pump... )...See MoreGE Advantium 240 vs 120
Comments (10)I had a 120. I ended up using it mostly as a microwave because anything you put in has to be fairly small, and cookware must be non-metal and round, since it has to rotate on the turntable. For feeding a family of 4, it just wasn't that practical. I did occasionally use it to heat up Dino-nuggets and the like. Otherwise, it didn't get much use in speedcook mode. We just finished a remodel on our new house and I decided against the Advantium and went with a warming drawer instead. I have to say I LOVE IT. I use the warming drawer almost everyday. Favorite appliance so far, even though I do like my induction cooktop, there is a learning curve. The warming drawer is simplicity....See MoreRadiant Heat - Electric or Hydronic??
Comments (28)Thanks David. Being precise and listing every point and sub point is tricky. English was my worst subject in school, I'm better at building bathrooms than building paragraphs. I work harder posting more information but like you mentioned everyone needs to dig deeper, find all the questions that need answering and then go about finding the correct answers and then confirming the source of the answer. I have spoken with my supplier and received info back from them direct, I then worked out my own math to confirm and then double check the Heat Loss table. We adjust the cable spacing only a little to try and fudge out dips and valleys. And never bring the cable in closer than spec'd. Again, I'll post my math and equations with as much detail as I can provide so people can understand the process I use to work out these calculations. I build stuff every day, I read and hone my skills everyday and I work with pros everyday. I have learned a lot and which each new project there is always the "X" factor. Your gut can tell you when something just doesn't look right and inspectors should be shown what your doing and not left out of the loop. We have a great group of men and women checking our projects here in Vancouver, get to know your local inspectors - it's worth it. My building inspector left my home raving about it yesterday - he went on to say it should be entered in a contest and hopes he gets to come back for the final so he can see my home completed. These are not monsters or people to avoid- they are your last double check on your project and honestly speaking you should be the last check on any project. It's your project - don't trust anyones opinion as fact. Work it out yourself or spend your time finding the right contractor. There are many guys out there who know what their doing, take out permits and do the job right. That said they seem to be the minority......See MoreRadiant Heat Electric vs Hydronic
Comments (10)You can run hydronic radiant with only a 1/2" rise in floor height - you just need some plywood with channels for the tubing, such as QuickTrak (http://www.pexsupply.com/Quik-Trak-Radiant-Heat-System-819000) - I have a bit over 2000sqft in my house and it's fantastic. (I'm not affiliated with any manufacturer or vendor.) The 1-1/2" suggestion likely came from someone looking to float concrete, which is also a valid approach, but not necessary. It gets you thermal mass which has positives and negatives; I wouldn't worry about it. The WarmBoard mentioned above is the same approach as the QuickTrak (subfloor+radiant-on-top) except that it is its own subfloor, whereas QuickTrak goes over your existing subfloor. All that said, I think the biggest concern for you is your slab. If it's not insulated well underneath you'll just be heating mother earth and it's all a waste of time and energy, no matter whether it's electric or hydronic. And finally, on a pedantic note, electric radiant _is_ more efficient because it's a nearly 100% energy-to-heat conversion, by definition; however, the cost per unit of energy is generally significantly lower for gas versus electricity (1:2 in the Pacific Northwest for example), so hydronic off a gas-fired boiler is going to be more _cost-effective_....See MoreUser
14 years agolast modified: 9 years agorileysmom17
14 years agolast modified: 9 years agoBilll
14 years agolast modified: 9 years agorileysmom17
14 years agolast modified: 9 years agoBilll
14 years agolast modified: 9 years agorileysmom17
14 years agolast modified: 9 years agobus_driver
14 years agolast modified: 9 years agoUser
14 years agolast modified: 9 years agoweedmeister
14 years agolast modified: 9 years agorileysmom17
14 years agolast modified: 9 years agoBilll
14 years agolast modified: 9 years agorileysmom17
14 years agolast modified: 9 years agoBilll
14 years agolast modified: 9 years agorileysmom17
14 years agolast modified: 9 years agoBilll
14 years agolast modified: 9 years agobrickeyee
14 years agolast modified: 9 years agoUser
14 years agolast modified: 9 years agoDavidR
14 years agolast modified: 9 years agorileysmom17
14 years agolast modified: 9 years agoUser
14 years agolast modified: 9 years agorileysmom17
14 years agolast modified: 9 years agobus_driver
14 years agolast modified: 9 years agoBilll
14 years agolast modified: 9 years agosnukum68
8 years agoweedmeister
8 years ago
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