| Author | Message | ||
| E. R. Red Ruby (Beatsworkin)
Registered Member Username: Beatsworkin Post Number: 7 Registered: 2-2006 Posted From: 12.207.188.163 Rating: N/A |
I am now ready to replace my two roof top AC. They are Duo Therm 13,000 Question: What brand should I be looking at. 40 ft GMC 4905 | ||
| Bob greenwood (Bob_greenwood)
Registered Member Username: Bob_greenwood Post Number: 1 Registered: 7-2006 Posted From: 63.233.6.115 Rating: N/A |
there are two,that I know of: DUO-THERM COLEMAN I think coleman has a new low profile unit | ||
| Bob Boyce (Bob_rts)
Registered Member Username: Bob_rts Post Number: 9 Registered: 7-2006 Posted From: 66.44.206.182 Rating: N/A |
Can't forget Carrier. They are in the rooftop air biz as well. | ||
| Cliff (Floridacracker)
Registered Member Username: Floridacracker Post Number: 288 Registered: 7-2004 Posted From: 65.33.17.106 Rating: N/A |
I have two Carrier V's ducted/remotes on my 4905. No complaints, work good, almost two years. Of course if I had waited a few months I could have gotten the new low profile units. Worth the extra cash to me for looks. Oh well, next time Cliff | ||
| JW Smythe (Jwsmythe)
Registered Member Username: Jwsmythe Post Number: 250 Registered: 2-2006 Posted From: 71.98.174.112 Rating: N/A |
I'm shopping right now. I'm pretty much settled on a 15k BTU Carrier heat pump for $600. The guy is listing them on eBay, but they're new. auction # 4647300920. That's not me, so I'm not making any money on it. I'm going to call him in the morning, to confirm that it comes with the hardware that I believe is indicated. It seems a little fuzzy in the description if the lower half is ducted or non-ducted. The heat pump seems like a good choice, and the price seems right. | ||
| David (Davidinwilmnc)
Registered Member Username: Davidinwilmnc Post Number: 135 Registered: 7-2005 Posted From: 152.20.216.103 Rating: N/A |
Those 15K Carrier HP's are a good deal. I have one on my MC-8 and it cools pretty well in 90+ heat and very well under 90. It brought the inside temp from 104 to 79 in about an hour or so in the mid 90's outside. It also heats nicely... as long as it's 40 or above outside. That 1500 watt heat strip is not really useful. I bought one of those off eBay from the same seller and had great service (he also had a decent price on an LP 'fridge). Good luck. David | ||
| JR Lynch (Njt5047)
Registered Member Username: Njt5047 Post Number: 1 Registered: 7-2006 Posted From: 69.132.238.127 Rating: N/A |
Have you considered rooftop heatpumps? I've got two Dometic HPs that have worked quite well for two years plus. Gives cheap heat, and plenty of heat (12K X 2)when needed, and 15K of cooling X 2. The low fan speeds are much quieter than most rooftops. Mine operate on low most of the time. Only time both are needed is when the bus is in direct sun during 90+ weather. Once the sun sets, the front AC will easily cool the whole bus...as long as the bath and bedroom are not closed off. If you need some heat, this gives another option. As David says about the heat strips...they aren't worth the trouble to install...I've had those things in Coleman rooftops in several RVs and they just made cold air not quite as cold. All major brand RV rooftops are good values. The Dometics are less than 12" high too. Best, JR | ||
| Bob greenwood (Bob_greenwood)
Registered Member Username: Bob_greenwood Post Number: 2 Registered: 7-2006 Posted From: 65.142.253.223 Rating: N/A |
heating a bus, say it's 30 during the day & 20 at night,you need about 30,000 btu,the 1500 strips are about as much help as a box of matches | ||
| David Dulmage (Daved)
Registered Member Username: Daved Post Number: 123 Registered: 12-2003 Posted From: 142.46.199.30 Rating: N/A |
Does anyone have experience with the Coleman Mach High Performance series rooftop air conditioners? For example the Coleman Mach HP series 15,000 BTU model is rated at 12.4A in full cooling mode v.s 16.0A for the Mach 15 15,00 BTU model or 12.7A for the PolarMach 13,500 BTU model. The 3.6A difference is significant when trying to manage overall power consumption. | ||
| JW Smythe (Jwsmythe)
Registered Member Username: Jwsmythe Post Number: 252 Registered: 2-2006 Posted From: 70.197.102.69 Rating: N/A |
David, Thanks. I put the order in today for them. The guy was nice on the phone. When I was putting in the order, it said to call and confirm or drop them an email. Since I wanted to be sure it would go through smoothly, I called. I've read a lot about the heat strips. I haven't seen anything positive about them, but really it makes sense. They don't seem to be big enough for anything other than wasting electricity. When my bus is closer to done, and I'm heading towards colder places, I'll be sure to have a real heater installed.  | ||
| John MC9 (John_mc9)
Registered Member Username: John_mc9 Post Number: 13 Registered: 7-2006 Posted From: 66.217.105.83 Rating: N/A |
We had heat strips in the Coleman AC units in both our RVs. We lived in Massachusetts at the time, and we were glad to have the extra electric heat available. There were trips where it was all we needed to be comfortable. For below 40 degrees, additional electric radiators were used along with the rooftop heat strips. For below freezing and sub-zero nights, nothing less than two 30 kbtu propane (rv type/suburban), plus the electric radiators, and the air conditioner strips, were used. I wouldn't go without the extra heat strips, it's worth what little they cost, for that extra measure of comfort. (It's easier and cheaper to stay cool). |