Roughing It… Even More Smoothly

above: a completed 2018 Phaeton 40 IH waiting for final inspection

In case you missed it, we’re upgrading to a new motorhome! In our last two blog posts we discussed what we’re doing and why, and how our new diesel chassis differs from Rover’s gas chassis. In this post we’ll talk about some of the ways our new house (the box we live in, sitting on top of the chassis) differs.


Probably the biggest difference in our new house will be more space inside. While we’re pretty comfortable in Rover, a little more breathing room will go a long way. Our new Phaeton will be four feet longer (41′ 4″ instead of 37′ 6″), but more importantly will have slide-out rooms on both sides, making the inside a couple feet wider. It may not sound like much, but when your house is eight feet wide, an extra two feet makes a big difference! Below are the floor plans for our new 40 IH Phaeton (top) and our current 36 LA Allegro (bottom):

New 40IH and old 36LA floorplans.

While those two slide-outs on the passenger side will cut into our outdoor campsite space, they provide some great indoor space. We also like some of the floor plan changes, such as having our dinette on the passenger side so we can see our campsite (rather than our neighbor’s campsite) while eating, and a more unified living room area in the front (which includes the swiveling front seats).

The extra space, and the ability to carry lots of additional weight, also translates into quite a few extra “luxury” amenities. While none are really necessary, we have to admit we’re looking forward to quite a few of them! We’ll soon have a king size bed (Opie takes up a lot of space), a dishwasher, separate clothes washer and dryer, a big kitchen pantry, a larger wardrobe, a pull-out kitchen counter extension, induction cooktop, and more.

2018 Tiffin Phaeton 40 IH main living area – catalog photo

We’ve learned over the years that in the summer an RV is basically a big solar oven that’s difficult to keep cool (though Yuma in July was probably an unfair test), and in the winter it can be drafty inside, with a very cold floor due to being up off the ground with cold air flowing underneath us. We’ll now have three air conditioners with three heat pumps (vs. two and one in Rover), a diesel-fired AquaHot hydronic heat system that also provides unlimited instant hot water (no more involuntary cold showers), and double-pane flush-mounted windows. Oh, and heated floors! Yep, now we’re really roughing it!

If you know me well, you know I have a thing for home automation. In our old “sticks and bricks” house we could control all our lights, thermostats, and music from a web page or iPhone. This is one area where RV technology has lagged far behind. Our thermostat in Rover is a bit of a dinosaur, and because RV HVAC systems work differently than normal homes, it’s not been possible to replace it with a Nest or similar “smart/programmable” thermostat. That’s why I’m really excited that the 2018 Phaetons have a new in-wall touch screen system that can control practically everything in the coach! Here’s a look at our current thermostat (top) and the Phaeton’s new HVAC controls (bottom):

Now that’s an upgrade!

The touchscreen can control the lights (which are now dimmable), fans, water pump, generator, slide-outs, electrical system, and more. Best of all, some clever Tiffin owners have built a small device called CoachProxy to tap into this control system and provide WiFi access, remote access via cell phone, and programmability. I can’t wait to get my hands on it to start automating! Here’s a look at the touch screen showing the Phaeton’s electrical system monitoring and management:

Monitoring and controlling the RV electrical systems.

All this extra technology does come at a cost – increased electrical consumption. Fortunately, the Phaeton’s house battery bank is much heftier than Rover’s: 900 amp-hours (Ah) of AGM batteries, vs. 400 Ah of flooded batteries in Rover. In real-world usage that’s three times the capacity, since we can safely draw the AGM batteries down further than the flooded batteries, which we try to never draw below 50%. We also ordered an upgraded solar pre-wire package from Tiffin so we’ll have nice heavy solar wiring from the roof to the battery compartment for when we decide to add solar panels again.

Of course, one of the most important (and toughest) decisions is always what color to get! Typically each model RV only comes in eight or so different color schemes, where each scheme comprises four different colors arranged in swirls and swoops. When we ordered Rover in 2013 we got a tip that there was a secret “unpublished” color scheme called “NASA” which was monochrome. Since nearly every motorhome we had seen was a combination of brown and gold, we opted for NASA. Fast forward to 2018 and NASA is an official color scheme and we see monochrome motorhomes everywhere now!

Tiffin’s wall of color schemes

For the 2018 Phaeton, there were two color schemes that we liked: Maroon Coral and White Mahogany, which is pictured at the top of this blog post. But while we were visiting the Tiffin paint factory we spotted an Allegro Bus (a higher-end motorhome than the Phaeton) with a beautiful deep blue stripe across it. We haven’t really seen any blue in motorhomes before, with reds, browns, and golds still being in almost every scheme, so it really caught our eye.

The elusive Pacific Blue color on an Allegro Bus.

None of the Phaeton color schemes have any blue in them, but we spent some time at the paint shop office and they helped us design a custom color scheme for our rig (for a fee, of course) using white, silver, blue, and grey. Unfortunately, their printouts really look nothing like the final product (there’s only so much a color laser printer can do), so we expect our new rig to look quite a bit better than the printout from the paint shop, below:

A poor representation of our future paint scheme

To try and get a better feel for it, I took a Phaeton render from the Tiffin web site and tried to “photoshop” our two color changes onto it (below). I think it’s a bit closer to reality, but we won’t know how it will really look until it’s done. We’re taking a bit of a risk, but hoping it works out for the best! Either way, we’ll have a unique color scheme and will never “pass ourselves” going down the highway…

My attempt to mock up the final result in a paint program.

We’re really looking forward to watching our build in September! When we watched Rover’s build in early 2014 we often had no idea what we were looking at or what to pay attention to, being new to RVs and motorhomes. This time around with all our experience living, driving, customizing, and repairing Rover, we think we’ll get a lot more out of the build process. Plus, instead of only having three days in Alabama we’ll be there for three weeks and will see far more of the process, including the chassis, painting, and final inspections and quality checks.

Check back in with us in September for progress on our build. Hopefully by then we’ll also have chosen a name for our new traveling companion!

Note: “Roughing it… smoothly” is Tiffin’s corporate motto.

Michael Fischer

After a high-tech career spanning software development and systems administration to leading hundreds of engineers across cities and continents, I'm now slowing things down a bit. Traveling full-time in an RV with my awesome wife Kathie and our two big dogs Max and Opie, I'm now pursuing smaller personal software projects while seeing North America up close.


  1. Jeff   •  

    But no sewing room?!?!

    • Kat   •  

      The whole coach is my sewing room. :)

  2. Steven Lowe   •  

    Wow, you guys are really going for it! Blue is my favorite color, and your design looks fantastic. We’ll follow you when you get this beautiful coach on the road and make sure we meet up. Really want to see how you like the AGM batteries and your charging system overall. Enjoy!


    • Mike   •     Author

      Looking forward to crossing paths again! We’ll definitely be writing about our how the new coach compares to the old once we have it for a while…

  3. Ed Bickford   •  

    I have Phaeton envy!! The extra living room space looks great! I like our full slide in the 36UA, if we had the slide on the kitchen side it would be great. Like you I would much rather have the dinette on the camping side. One thing I didn’t think investigate thoroughly enough when I ordered the solar pre-wire was the way the wires were run. There was a set from the roof to the cabinet above the driver’s seat and another from the cabinet to the battery bank. I ended up buying the Magna MPPT solar controller which integrates nicely with the Inverter and because of its size placed it in the bin next to the battery bank. I then had to move the wiring from the battery compartment to the storage bin and connect the two wires in the cabinet above the driver seat. You probably have that all covered by now but thought I would share that just in case.

    • Mike   •     Author

      Thanks Ed! Yeah I plan to connect the wires together in the cabin cabinet, and install the controller in the battery compartment if there’s room. Since the batteries are AGM it should be OK to have them there. I guess Tiffin expects folks to only install one panel, in which case putting the controller in the inside cabinet would be fine. I’m thinking 1200 Watts this time around, so even with the upgraded 4 gauge wire I’ll need to serialize panels into sets of two or three panels @ 36V or 54V instead of keeping them all at 18V. And I need to pick an 80A controller. But, we’re not going to worry about all that for a while!

  4. Mark East   •  


    Do you think you will install a Safe-T-Plus or equivalent on this new rig?

    • Mike   •     Author

      Not sure. We didn’t have one on the 36LA, so I’m not sure about adding one here either.


      • Mark East   •  

        Yeah, I wasn’t sure how much you had researched this area. Those that have them installed seem to really swear by them, but I was thinking that I would make the call after some time behind the wheel, etc.

  5. Mark East   •  

    Yeah, I wasn’t sure how much you had researched this area. Those that have them installed seem to really swear by them, but I was thinking that I would make the call after some time behind the wheel, etc.

  6. Steven   •  

    We love the blue paint scheme, for a second you had us fooled thinking the 40IH had a tag axle option, that would be our dream coach :). 44 is also too much for us.
    Would you mind sharing how much is the fee for custom color ?
    Enjoy the build and your new coach…

    • Mike   •     Author

      Steven, yeah we didn’t really want to longer than 41′ or so. Changing out a color is around MSRP $850 I think.

  7. Paul   •  

    I’m curious about the build process. Do you order from Tiffin and then purchase from a dealer? Also, I don’t like that a stranger drives your coach to the dealer, can you be hired as the driver to take your coach to the dealer? I’m thinking about purchasing a Newmar as close to their plant as possible so the break in miles are driven by me instead of some random driver.

    • Mike   •     Author

      Paul, you have to order from a dealer, but you can request your build schedule from Tiffin and then go watch the build. Tiffin hires commercial drivers to deliver the RV to the dealerships – you can’t drive it. Lots of folks buy at the three dealers closest to Tiffin (Sherman RV, Davis Motorhome, and Marlin Ingram RV) so the RV will have few miles on it, and so they can return to Tiffin if needed for any initial repairs.

  8. Rod Reichardt   •  

    Great choice of coach guys. We tried to buy a 44OH at a local RV show a little over a year ago. Same floor plan but with a large closet laundry room tacked on to the rear. We were told that there was an issue with the title/documentation that delayed us taking possession for a couple of weeks. Turned out that the coach had been sold to someone else. I never got the entire story but after finally telling us the coach was not ours the other deal fell through. Even though the coach never left the dealer they eventually had to sell it as used and it sat for many months. In hindsight I wish we had pursued it further. It was a great deal. We didn’t love all of the color choices but the price was amazing. If we ever decide to go full time the Phaeton would be my choice. We really love our 36LA but the Phaeton is another level of nice. Congratulations on your choice!

    • Mike   •     Author

      Wow, that sounds like quite a fiasco by the dealer. Crossing our fingers that the new Phaeton is as reliable as the 36LA has been…

      • Rod Reichardt   •  

        I could have pursued it but we really didn’t want a tag axle rig and had trust issues with the dealer. But the show price was crazy low. Pardon me if you already mentioned it but which dealer are going through? I talked to Sherman briefly about a year ago and would likely go with them if I was to order a coach. Good luck with the IH. Love the color choice.

        • Mike   •     Author

          We ordered from Rick Osburn at Marlin Ingram RV.

          • Rod Reichardt   •  

            Thanks Mike!

  9. Robert Lindley   •  

    Hi Mike, Sorry we missed meeting you in Red Bay, AL at Tiffin. We had a great week and really enjoyed our time at the plant and meeting up with other Tiffin owners. I look forward to seeing move photos of your Phaeton 40IH during construction. Thanks, Robert

    • Mike   •     Author

      Yeah, too bad the timing just didn’t quite work! We arrive on 9/6 and our build starts on 9/7!

  10. Larry Loss   •  

    Hi Mike, We also have an IH on order you commented on my post on the Tiffin forum. Do you have a build date yet? We ordered ours on Aug. 3 so it’s just been a month. Our order number is 110576. I was curious about where you are in the build order. Sounds like we ordered similar coaches, all electric with heated floors. We went with the theatre seating and Maroon coral. Alot of IH orders are out there I hope it doesn’t impact delivery time. Our house sold WAY to fast and we will be homeless as of Sept.15. Fortunately we have some friends willing to put us up until early Nov. Would like to keep in touch with you and see how your build goes. We will be there for the main assembly ( station 1) but will only get to see that. Three days I think. I called Danny Inman this morning and left a message but haven’t heard from him yet. Good Luck Larry and Sue Loss

    • Mike   •     Author

      We placed our order in late July and our build starts this week, 9/7! We could only watch three days for our Open Road build back in early 2014 but it was all the good stuff (station 1-18). We’ll be posting assembly photos on our Facebook page ( pretty much daily during the build, if you use Facebook. Let us know when you make it to Red Bay, we’ll be there through all of September…

      • Joanne denny   •  

        Hi mike
        We’re scheduled to start our build next Thursday – we’re staying thru Tuesday and stage 18 but not the paint etc
        We’re somewhat newbies , second coach in just a year – winnie was a problem coach!!
        You mentioned that you didn’t know much on your first build, learned a lot by second – can you make any suggestions to help us going thru this process besides taking lots of pics ?and it’s my understanding that we can’t make any more changes at this point but after reading several blogs besides yours wondering if we made a mistake not ordering the gel batteries ?? Assuming we can do that afterwards if we need them –
        We also got the all electric coach

        Thank you
        Jim and joanne

        • Mike   •     Author

          Jim and Joanne, it might not be too late to get the upgraded batteries, but you’ll have to get your dealer to make the call first thing Monday! I sent a few suggestions for the build in a separate e-mail to you. Enjoy your new rig! -Mike

  11. Ray   •  

    RV manufactures still make motor homes with black or dark colors, if you have a black coach it can be 10% hotter and more difficult to cool than a lighter color. You made a good choice going with Tiffin:0

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  13. Connie   •  

    Wow, what a great looking coach. Love the color scheme. Lisa and I are so happy for you and hope to cross paths again so we can see ooh and ahh in person.

  14. Gary Harpster   •  

    We bought a 2018 Phaeton 40IH when I retired in 2018. Same color and layout as yours. I had a friend that already ordered his, so I didn’t want the same paint job. We went with the custom paint job as well in Blue. Just today I had the Flooded Batteries changed to AGM’s as ours weren’t lasting very long and even though I believe I maintained them well – they were already bulging on the sides. I’m researching today to see if I need to do anything with the existing inverter to handle these AGM’s – so far I’m not seeing anything needing to be changed. If you have any questions or run into any challenges, I may have already “been there and done that”, feel free to drop me a line. Safe travels.

    Gary H.

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