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Old 11-14-2018, 04:10 PM   #1
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Hydro Hot

Can I run both my Hydro Hot furnaces on 30 amps. 2005 Tiffin Allegro Bus
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Old 11-14-2018, 05:53 PM   #2
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You have 2 Hydro-Hots, at 60,000 btu's each ? Never heard of that. I must be misunderstanding the question. But, if you do, why not, doesn't require that much electrical.
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Old 11-14-2018, 06:14 PM   #3
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Can I run both my Hydro Hot furnaces on 30 amps. 2005 Tiffin Allegro Bus
Are you talking about the electric heating elements? If 110 volt probably 15 amps or less per element. If talking about running electric and diesel at same time. You can do that.
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Old 11-14-2018, 06:44 PM   #4
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Whoops, thanks jcussen, now I understand his question. WOW, I was having a hot flash.
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Old 11-14-2018, 08:27 PM   #5
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Whoops, thanks jcussen, now I understand his question. WOW, I was having a hot flash.
At first I thought the same and thought that 2 hydro-hots seems like overkill to me.

Some aqua-hots [Newell] actually have two electric elements, one 110 volt and one 220 v. Can heat the coach in almost any weather without using diesel. but must have 50 amp service to use.
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Old 11-14-2018, 08:34 PM   #6
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I have a 600D AquaHot. It has two 120 volt elements. The 675D has a 120 and 240 volt element.
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Old 11-14-2018, 08:54 PM   #7
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Old 11-14-2018, 09:03 PM   #8
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I have a 600D AquaHot. It has two 120 volt elements. The 675D has a 120 and 240 volt element.
I have the two 120 volt elements in my present coach, but have never used both in real cold weather. Can the two provide enough heat for showers and heating in cold weather?
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Old 11-14-2018, 09:09 PM   #9
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I have the two 120 volt elements in my present coach, but have never used both in real cold weather. Can the two provide enough heat for showers and heating in cold weather?
Hmmm...mebbe... I would turn both the electric's and the diesel on..If the electric's are slow to recover, the diesel will take over.. win win
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Old 11-14-2018, 09:30 PM   #10
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I would turn both electric elements on and take a shower. If the water get's too cool, you need the diesel burner.
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Old 11-14-2018, 09:52 PM   #11
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I would turn both electric elements on and take a shower. If the water get's too cool, you need the diesel burner.
I could, but would rather hear from someone that did get a cold shower so I don't have too.
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Old 11-14-2018, 09:57 PM   #12
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I could, but would rather hear from someone that did get a cold shower so I don't have too.
Can't help you with that...(we have a mdl EXE-100-02s so only have the one electric 1850w heat element)
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Old 11-14-2018, 09:58 PM   #13
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We have a 07 Allegro Bus. Hydro hot runs on D.C. Battery 12v power. The electric element is AC power, and provides only about 10% of the BTUs of the boiler unit. You could run both diesel and electric on a 30 amp service, but why? If you are cold, run the hydro hot diesel only, AND run your #2 heat pump on "electric heat". Don't run other high draw AC stuff like toasters, microwave, etc or you will trip the 30 amp breaker. If you do that, and don't recognize the loss of AC power, you will quickly run down your coach batteries (due to inverter pulling power to make your ac stuff continue to run). That could possibly preclude a start if your chassis batteries were low. How do I know? I got very close to this a couple nights ago when 50 amp power failed on our pedestal and we did not recognize it until the batts ran down to the inverter cutoff level and the TV and all inverter circuits went off. We were able to recover using the 30 amp plug which was ok.

Don't know about other rigs, but Tiffin needs to install a simple warning buzzer and light that triggers when external power is lost and the rig shifts to battery/inverter power only.
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Old 11-14-2018, 10:02 PM   #14
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I could, but would rather hear from someone that did get a cold shower so I don't have too.
I only have the one electric element, and have no problems having 'Navy' showers !!
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