Welcome Strack,
If we can determine the model of the furnace, fridge, and water heater in your camper now, we can help with them. If they do not exist, as they were not in the camper when you bought it, well, let us know that also, as we can ask for different questions to have new ones fit in the space Sunline created.
Sunline used Atwood-brand water heaters, Atwood Hydroflame furnaces (you said Duraflame, maybe a typo), and Dometic-brand fridges. If you still have those brands, replacements are available; we need your model numbers. Dometic bought out Atwood, and it now offers parts for the older Atwoods and makes updated versions of water heaters, furnaces, and fridges.
If a previous owner changed the brand, tell us what it is. We can also help with that.
I want to ask: Do you know that none of these three appliances can be fixed?
I'm just asking because the cost of all new replacements may determine what you want to do. I do not know which versions you have, but this will start the conversation.
A new Domeitc 6-gallon all-gas or gas/electric water heater can cost $450 to $600 plus tax and possibly shipping. You need a conversion kit to adapt to the new heater size and piping that fits the size of the hole in the camper.
A new furnace: I think Dometic may have discontinued making the new 79/80 series Atwood furnaces that Sunline installed in the smaller campers. Because these furnaces had no ducts, the heat came out of the front of the grill inside the camper. Again, pending what you have, installing a new furnace in the side of the camper can cost $1,000 or more and require some camper rework.
- A new fridge, Dometic, now offers a 12-volt compressor fridge and still some models in the LP gas/ electric version. A new Dometic 3 cubic ft LP gas/electric fridge can be in the $1,700 range plus tax and shipping. Looks like this.
https://www.dometic.com/en-us/outdoo...4?v=9105306315
As you can see, the cost of all new appliances adds up quickly. We have not yet investigated the details of the installation, as there may not be a drop-in, and some camper mods would be required to make the new versions fit.
There are other options for the furnace; Suburban, another RV brand, makes a direct discharge furnace in the $800 + tax and shipping range. We would have to drill into the details on fit etc, but it is an option if Domietc no longer offers these smaller direct-discharge furnaces. Like this Suburban NT-SEQ series
https://suburbanrv.com/climate-contr...eries-furnace/
If you "only" camp with shore power, many install a dorm-style compressor fridge at a fraction of the cost. You have to deal with some cabinet mods and the lower vent on the side of the camper, but many have gone this route as they never camp off-grid.
The water heater cost is lower than the other two items. This is what it involves with the Dometic
https://www.sunlineclub.com/forums/f...avy-20522.html
OR you go with a Suburban brand that fits in the old Atwood hole.
https://suburbanrv.com/water-heating...r-heater-door/
Give us the make and models of what you have, and we can hone in on this closer. If any of the three can be fixed, we can see if parts are still available once we know more about what does not work on them.
I hope this helps.
John
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