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Old 06-22-2019, 06:03 PM   #1
Mini-Skoolie
 
Join Date: Apr 2019
Location: Loudoun, Virginia/Bus in Beckley, WV
Posts: 38
Year: 2000
Coachwork: Thomas Built
Chassis: Saf T Liner MVP EF
Engine: CATerpillar Diesel
Victory - City water, cold.

Taking a moment to appreciate the flexibility given to us by PEX tubing. pardon the rats nest that is the electrical, that is coming soon.
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Old 06-22-2019, 06:21 PM   #2
Mini-Skoolie
 
Join Date: Apr 2019
Location: Loudoun, Virginia/Bus in Beckley, WV
Posts: 38
Year: 2000
Coachwork: Thomas Built
Chassis: Saf T Liner MVP EF
Engine: CATerpillar Diesel
A new challenger appears

on demand propane water heater. Considering a flue.
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Old 06-22-2019, 08:19 PM   #3
Bus Crazy
 
ol trunt's Avatar
 
Join Date: Apr 2012
Location: So Cal
Posts: 2,386
Year: 1935
Coachwork: Superior
Chassis: Chevy
Engine: 317 ci/tid / Isuzu
I have an on demand water heater in my bus and I'm well satisfied with it. However, there are three conditions that need to be met for an on demand to work properly. First, the exhaust from the heater will reach dangerously high temps and needs to be vented outside to avoid fire hazard. Second, design a recirculating pathway for the system or you will waste a lot of water during the heating cycle. Third and most importantly, add a temp controlled switch to the outlet side of the heater. These heaters are designed to add a set amount of heat to the incoming water. Mine happily adds 40 degrees F to the incoming water temp but couldn't care less if the absolute water temp goes to boiling. Your system will withstand somewhat higher water temps as it is pex but mine being pvc began swelling and leaking when the water temp hit 140 degrees F--hence the outlet temp control.
Jack
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Old 06-23-2019, 12:43 AM   #4
Bus Crazy
 
Sleddgracer's Avatar
 
Join Date: Nov 2018
Location: south east BC, close to the Canadian/US border
Posts: 1,940
Chassis: still looking for my bus
Quote:
Originally Posted by ol trunt View Post
I have an on demand water heater in my bus and I'm well satisfied with it. However, there are three conditions that need to be met for an on demand to work properly. First, the exhaust from the heater will reach dangerously high temps and needs to be vented outside to avoid fire hazard. Second, design a recirculating pathway for the system or you will waste a lot of water during the heating cycle. Third and most importantly, add a temp controlled switch to the outlet side of the heater. These heaters are designed to add a set amount of heat to the incoming water. Mine happily adds 40 degrees F to the incoming water temp but couldn't care less if the absolute water temp goes to boiling. Your system will withstand somewhat higher water temps as it is pex but mine being pvc began swelling and leaking when the water temp hit 140 degrees F--hence the outlet temp control.
Jack
good advice!
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