Thanks, Glen. That's a sweet install. I plan on mounting one to the back of a Class A (gasser) similar to what you have done.

How much clearance did you leave between the RV and the outside unit?

Is this the model you have? www.highseer.com/ultra-high-seer-inverter-mini-split-ductless/ductless-mini-split-heat-pump-wys012am22.html

I'm thinking about installing this 48v DC heat pump that I can run off batteries/solar: www.geinnovations.net/HSAC_Productline.html

Chip

Sushidog wrote:

---

Thanks, Glen. That's a sweet install. I plan on mounting one to the back of a Class A (gasser) similar to what you have done.

How much clearance did you leave between the RV and the outside unit?

Is this the model you have? www.highseer.com/ultra-high-seer-inverter-mini-split-ductless/ductless-mini-split-heat-pump-wys012am22.html

I'm thinking about installing this 48v DC heat pump that I can run off batteries/solar: www.geinnovations.net/HSAC_Productline.html

Chip

---

 The installation manual stated 12" clearance from wall. I really believe one could get away with 7-8". It pulls air from 1 side and back. I'm considering trying it. If pressure rises it is too restricted. No change in pressure good to go.

Glenn,

For those that don't know what a Mini Split is, can you give a brief overview and why you decided to install one?

Howard wrote:

---

Glenn,

For those that don't know what a Mini Split is, can you give a brief overview and why you decided to install one?

---

 Mini Splits and very popular in Europe and gaining here. They use no ducts. Ducts loose heat or cool. There is and outside/compressor unit and an interior/evaporator unit. Lines connect the two. One of our Dometics needed replacing and cost was comparable. Mini splits are very quiet. We had our TV turn up the 70ish volume with both units running. With the mini split we are at 20ish volume. A plus also thermostat is controlled with a remote. My Dometic is a 15k and mini 12k and it cools better. One can run 2 of these units on a single 15 amp 110v breaker. Where a typical ac/hp ether runs at 100% output or none a mini split runs as low a 20% up to 100% depending on need. I can see these running on a robust solar system. Which will be a future project. Working full time now I am forced to stay in hot humid climates since this is where the most money is for welders. Solar later when I retire.

As a side benefit they also provide very efficient heat too, in milder weather, sparing your propane use.

The excellent, high-efficient model Glenn chose has an SEER of 21.5 (EER of 12.5) meaning it only consumes about half as much electricity for the same amount of cooling power as a conventional roof mounted AC (960 watts for cooling and 1120 for heat).

The model I'm looking at is even more efficient, being a native 48v DC appliance. It runs directly off a 48v DC battery source, as I'm planning (8 GC-2 batteries in series) coupled with inexpensive high voltage, high wattage home style solar panels. I'm planning on between 1,700-2,000 watts as the price on these panels has dropped to less than 50 cents a watt from Sun Electronics. This unit has an incredible 21.43 EER giving a SEER of around 30! This means it only uses 560 watts (11.5 amps at 48v DC) to provide 12,000 BTUs of cooling and 600 watts (12.1 amps at 48v) to produce 12,500 BTUs of heat (provided the temperature doesn't dip below 40-45 degrees as this unit is optimized for cooling, not heating as some heat pumps are). It will work down to below freezing but the efficiency is greatly reduced when it gets that cold (going into frost prevention mode) making it for supplemental heat only. It will not replace your furnace, only reduce its use in milder weather, saving propane costs (and trips to replace it). On the down side, this super-efficient heat pump costs about twice what Glenn invested in his, so you could get two of his mini-splits for just one of these. But for off grid AC, saving not only on electricity but campground fees, generator usage, fuel and propane costs, it may be worth it to you, depending on how much you like to boondock.


Chip

What made it so bad was where I ran the lines. Anyway, we love this unit. We have decided to purchase a 30k mini split 3 head unit. Will use ceiling cassettes units. Mount 2 where rooftop units were. Enlarge opening. Keep current kitchen unit.likely do this this fall.

Will be capable of 36k. Current unit is 12k and the two cassettes will be 12k each. We can run each separately. We are 40' long. Each head has its own remote. I feel the 2 cassettes will be enough but already have the wall unit so keeping it. If DW does any heavy cooking it will put cooling directly into kitchen.

just take a hammer and notch the ground so the legs of ladder are even, run an extension ladder up. if you look closely at the ground in front of condesner you can see where they notched the ground.

These ones are easy. when you got a home built on mountain side and theres like 15-20' of crawl space and you got to hang ducts. lol...notch ground then set your extention ladder against the floor joists, theres like a 1" lip that your ladder rests on but the further you go up the more that thing flexes and the closer you are to dropping off the lip and falling down. Ah that sh*t sucked, strapping like that every 3'. I dont miss that kind of work.

What do you cover the unit with when you travel.  I can see lots of road grime getting into the unit when you travel, especially on wet roads.