Kool RV on smaller campers

[Diesel Greg]

Has anyone used a Koolrv product on a smaller camper? I have a Mini Lite 2109s would I benefit from installing this product in my small rig?

[TeachTexas]

I put one in ours. It reduced noise and evened out the airflow in the ducts. You do lose the quick dump feature but we don't miss it.

[Diesel Greg]

Originally Posted by TeachTexas

I put one in ours. It reduced noise and evened out the airflow in the ducts. You do lose the quick dump feature but we don't miss it.

What I have read the quick dumb feature doesn’t really cool the camper any faster do you find this to be true?

[TeachTexas]

It doesn't cool the camper. It gives you a concentrated flow to quickly cool one area. We used in the past when we would come in from being outside in hot weather working. Now if we need the quick personal cooling we just turn on some spot fans and sit.

[Chuck754]

Just received a notice that my Kool RV upgrade is being delivered today. I have a Rockwood 2204S with Coleman-Mach 15. It was $84.

Looking forward to a little reduced noise in a relatively small coach and improved efficiency (may not have to run as long between cycles).

This forum is great and appreciate everyone posting such good modifications.

Chuck

[Aussieguy]

I would think that any ducted system big/small would benefit from fixing the air flow to the ducts

as for loosing the dump feature... worth it to not have the chance to short cycle cold air back into the system

Plus I got 4 vents servicing the living section...
If I want more cooling flow in the living area , can close the vents in bath and bedroom

fan

[Diesel Greg]

Originally Posted by Chuck754

Just received a notice that my Kool RV upgrade is being delivered today. I have a Rockwood 2204S with Coleman-Mach 15. It was $84.

Looking forward to a little reduced noise in a relatively small coach and improved efficiency (may not have to run as long between cycles).

This forum is great and appreciate everyone posting such good modifications.

Chuck

I ordered one yesterday, I also have a Coleman Mach 15 unit on my rig. I am guessing since I live in Hellinois and it’s coming from Arizona I should have it next week sometime. I too am looking forward for a quieter system and more even flow through out our little camper

[Diesel Greg]

Originally Posted by Chuck754

Just received a notice that my Kool RV upgrade is being delivered today. I have a Rockwood 2204S with Coleman-Mach 15. It was $84.

Looking forward to a little reduced noise in a relatively small coach and improved efficiency (may not have to run as long between cycles).

This forum is great and appreciate everyone posting such good modifications.

Chuck

I really like this forum also.

[CFair]

I installed the KoolRV on our 2020 FR Sabre 270RL 5th wheel about a month ago, but we really gave it a work out the week of August 26 while we were about 25 miles south of St. Louis for a dog agility meet. The RV sites were in the open on gravel with no shade to be found. Daytime temps ran 95-99 with "feels like" temps of 105-108 for 4 straight days. We have a 15K BTU roof A/C with ceiling ducting (and originally a dump directly into the rear of the unit). I sealed up the entire plenum where the A/C unit dump into the trailer and then installed the KoolRV ducting per the directions. I used additional aluminum ducting tape and wrapped the entire new ducting for more insulation and sound isolation. I also sealed the ceiling vent penetrations between the ducting in the trailer and the outer vent ring (found lots of openings) using the aluminum ducting tape too. I found in some areas that I could see using my cell phone camera I could use some small foam blocks (came from the shipping for my new batteries) and some ducting tape to hold the ducting open wider, especially up forward in the bedroom, which also gave better flow. The actual performance was better than I had hoped. In the Missouri heat we were able to keep the RV at a comfortable 74 inside. The noise reduction was amazing! Even with the A/C on high we could hold normal conversations and hear the TV and Radio clearly. With the better flow in the ducts, you won't miss the "dump' function, and your return air flow will also improve with more filter media being exposed to the return air flow. Everything together took me a full morning, but the actual duct install was only about an hour or so. If you really want to keep heat out, get a roll of Reflectix at Lowes or Home Depot and cut out inserts for your windows to keep the sun out. It took me 3 hours to do all the windows and ceiling vents in our RV. For most windows you can simply press fit the material into place if you cut it a little large. The material is light, easy to cut with kitchen scissors, and not very expensive to buy. I hope you have an easy install and get good results too!
Chris

[Diesel Greg]

Originally Posted by CFair

I installed the KoolRV on our 2020 FR Sabre 270RL 5th wheel about a month ago, but we really gave it a work out the week of August 26 while we were about 25 miles south of St. Louis for a dog agility meet. The RV sites were in the open on gravel with no shade to be found. Daytime temps ran 95-99 with "feels like" temps of 105-108 for 4 straight days. We have a 15K BTU roof A/C with ceiling ducting (and originally a dump directly into the rear of the unit). I sealed up the entire plenum where the A/C unit dump into the trailer and then installed the KoolRV ducting per the directions. I used additional aluminum ducting tape and wrapped the entire new ducting for more insulation and sound isolation. I also sealed the ceiling vent penetrations between the ducting in the trailer and the outer vent ring (found lots of openings) using the aluminum ducting tape too. I found in some areas that I could see using my cell phone camera I could use some small foam blocks (came from the shipping for my new batteries) and some ducting tape to hold the ducting open wider, especially up forward in the bedroom, which also gave better flow. The actual performance was better than I had hoped. In the Missouri heat we were able to keep the RV at a comfortable 74 inside. The noise reduction was amazing! Even with the A/C on high we could hold normal conversations and hear the TV and Radio clearly. With the better flow in the ducts, you won't miss the "dump' function, and your return air flow will also improve with more filter media being exposed to the return air flow. Everything together took me a full morning, but the actual duct install was only about an hour or so. If you really want to keep heat out, get a roll of Reflectix at Lowes or Home Depot and cut out inserts for your windows to keep the sun out. It took me 3 hours to do all the windows and ceiling vents in our RV. For most windows you can simply press fit the material into place if you cut it a little large. The material is light, easy to cut with kitchen scissors, and not very expensive to buy. I hope you have an easy install and get good results too!
Chris

After installing the Koolrv product I did plan on checking for and sealing gaps between the supply vents and ceiling, I think I am going to use backer rod and aluminum tape if the gaps aren’t too big

[chriscowles]

Originally Posted by Aussieguy

... Plus I got 4 vents servicing the living section... If I want more cooling flow in the living area , can close the vents in bath and bedroom ...

... and redirect all 4 living area vents toward the chair where you're sitting.

I did the DIY version using duct board and aluminum tape.

[Aussieguy]

Originally Posted by chriscowles

... and redirect all 4 living area vents toward the chair where you're sitting.

I did the DIY version using duct board and aluminum tape.

me too DIY

except I was too cheap to buy board material
used Amazon cardboard box covered with the a/c silver colored tape
Cost me zero as already had the tape

double stacked the board and once it was cut to size ... taped the whole board's face...

[Diesel Greg]

Got tracking on the Koolrv should be here Tuesday. Can’t wait to see how this mod works.

[chriscowles]

Originally Posted by Aussieguy

me too DIY

except I was too cheap to buy board material
used Amazon cardboard box covered with the a/c silver colored tape
Cost me zero as already had the tape

double stacked the board and once it was cut to size ... taped the whole board's face...

yeah, I don't think the board material being insulated, or not, makes a difference. I should have thought of that and saved the money.

[nvs4602]

There are apps for your phone to measure decibel levels. You should install one before you do the upgrade, that way you'll know the difference in noise level when done.

[Diesel Greg]

The Koolrv is installed. It took 2 1/2 hours but it’s because someone ran all the wires right down the center where the adapter plugs in to supply fan plenum so I had to dig out caulk and foam to get some slack to wires luckily there was enough slack also I was able to install 4 small screws where the adapter plugs into the vent duct it was loose without the screws tape would have probably held it fine. See Photos. Seems quite a bit quieter, according to decibel meter on my phone app it reduced the noise by 6-7 decibels and also better air flow I seem have to pull down the vent diffusers and seal around them that’s for another day.

[kendive]

Originally Posted by chriscowles

... and redirect all 4 living area vents toward the chair where you're sitting.

I did the DIY version using duct board and aluminum tape.

That's what I would do but if you want to buy already cut...


Here ya go...


https://www.ebay.com/itm/12655514499...Bk9SR67ry-i7ZA








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[MR.M]

Originally Posted by Diesel Greg

Has anyone used a Koolrv product on a smaller camper? I have a Mini Lite 2109s would I benefit from installing this product in my small rig?

I DYI'ed mine with pool noodles and aluminum tape . works great and also was able to keep the dump feture which i like . It blasts air with enough force i don't think much if any get recycled . Great when i want to cool the bedroom off fast . I FL I'm able to keep a 77 degrees during the day with both ac's and 72 in bedroom at night . cost's for the diy was about 15 bucks

[chriscowles]

Originally Posted by kendive

That's what I would do but if you want to buy already cut...


Here ya go...

That's probably cheaper than the materials that I bought, of which I threw out most of it.

[chriscowles]

I'm sort of hijacking this thread but it's relevant and the thread's about dead, anyway.

We're in Eastern Alabama, temps are in the low- to mid-70s. We slept with the windows open but now it's really muggy, so we closed up and turned on the AC. When it cycled off for the first time, condensation streamed out a low corner of my DIY "Kool RV" box.

That's the first time it happened. At least, it's the first time it actually leaked out. I have no idea if it ever collected and not drained off the roof before, but there's no water damage in the surrounding ceiling, when I inspected by pushing into the ceiling with my fingers.

What prevents that water from draining externally? Is it just an overwhelming amount of condensation? Is there a drain path I should inspect?

It's probably relevant that I've never done preventative maintenance on the AC unit. The trailer has been in use almost 5 years.