EPDM Coatings
rvupgradestore.com Composet Products Custom Yacht Interiors

Author Topic: Heating questions?  (Read 468 times)

wijames2002

  • ---
  • Posts: 161
  • "The cure for all problems is sun and saltwater"
Heating questions?
« on: December 16, 2017, 08:24:46 AM »
I've been able to figure out everything in my coach except the heating system. I can only find one thermostat that seems to control both the heat and AC (Attachment below) What I don't understand is: When I set the thermostat to heat, is it running on electric or gas? Also, what is the "Shed" light at the bottom of the control panel? and last, can I run the heat when not hooked up to electric? Sorry for so many questions.
1998 Fleetwood Southwind Storm
Chevy 454
2018 Kia Soul in tow.
"Liam lV" hearing service dog as co-pilot

"People will forget the things you say or do but they will always remember the way you make them feel"

Gary RV_Wizard

  • Forum Staff
  • ---
  • *
  • Posts: 62285
  • RVer Emeritus
Re: Heating questions?
« Reply #1 on: December 16, 2017, 08:53:11 AM »
The HEAT position runs the LP gas furnace and it appears you have just one (some rigs have two, front & rear). It uses only LP gas and 12v (battery) power for the furnace fan, so it does NOT require external electric (shore power).

The "Shed" light refers to an energy management function which is related to the a/c units. When plugged to 30A shore power, you don't have enough electrical power to run everything, so the controls for the a/c's monitor total power consumption in the RV. If the power draw gets near the 30A max (meaning near to tripping the main circuit breaker), it turns off one or both a/c's to reduce the power demand, i.e. it "sheds" part of the power load.
Gary
--------------
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

Heli_av8tor

  • ---
  • Posts: 320
Re: Heating questions?
« Reply #2 on: December 16, 2017, 10:04:05 AM »
The furnace blower draws a significant amount of power from your house battery. You'll likely get a day or two, but not a week without needing a recharge.

I have the same system (but with two furnaces) and the Shed function works very well. You may want to find and read the manual on it to better understand what all it's doing.

Tom
Tom & Theresa
2004 Pace Arrow 37C, Workhorse W22, 8.1 Vortec
2014 Honda CR-V Toad, Roadmaster -5 Base and tow bar
SMI Stay and Play Duo Brake system

wijames2002

  • ---
  • Posts: 161
  • "The cure for all problems is sun and saltwater"
Re: Heating questions?
« Reply #3 on: December 16, 2017, 11:48:06 AM »
The furnace blower draws a significant amount of power from your house battery. You'll likely get a day or two, but not a week without needing a recharge.

I have the same system (but with two furnaces) and the Shed function works very well. You may want to find and read the manual on it to better understand what all it's doing.

Tom

Thanks, I have a solar panel which should help some to keep the batteries up. How long will I need to run the engine to recharge the house battery?
1998 Fleetwood Southwind Storm
Chevy 454
2018 Kia Soul in tow.
"Liam lV" hearing service dog as co-pilot

"People will forget the things you say or do but they will always remember the way you make them feel"

wijames2002

  • ---
  • Posts: 161
  • "The cure for all problems is sun and saltwater"
Re: Heating questions?
« Reply #4 on: December 16, 2017, 11:50:03 AM »
The HEAT position runs the LP gas furnace and it appears you have just one (some rigs have two, front & rear). It uses only LP gas and 12v (battery) power for the furnace fan, so it does NOT require external electric (shore power).

The "Shed" light refers to an energy management function which is related to the a/c units. When plugged to 30A shore power, you don't have enough electrical power to run everything, so the controls for the a/c's monitor total power consumption in the RV. If the power draw gets near the 30A max (meaning near to tripping the main circuit breaker), it turns off one or both a/c's to reduce the power demand, i.e. it "sheds" part of the power load.

Thanks, answered all of the questions! You are a wealth of information. Do the house Batteries charge when plugged into shore power?
1998 Fleetwood Southwind Storm
Chevy 454
2018 Kia Soul in tow.
"Liam lV" hearing service dog as co-pilot

"People will forget the things you say or do but they will always remember the way you make them feel"

jatrax

  • ---
  • Posts: 31
    • Zigzag Mountain Art
Re: Heating questions?
« Reply #5 on: December 16, 2017, 05:27:21 PM »
Quote
How long will I need to run the engine to recharge the house battery?
As in most things "it depends".  Recharge from what position? 90% charge? 75%? 50%?  How many batteries? What type? What charger do you have?

Sorry but it is really impossible to answer that question with much accuracy.

Keep in mind that in general with standard lead acid batteries you should not go below 50% charge.  Doing so will impact the life of the battery.

What is more important is how much energy did you remove from the battery since last charge and then how long will your charger take to put that back plus the extra to ensure a full charge.  It might take an hour of running the truck engine or charger.  But it might also take 10 hours or even more if the battery is very low and your charge system is not capable of putting a lot of amp hours back in a short time.

Quote
Thanks, answered all of the questions! You are a wealth of information. Do the house Batteries charge when plugged into shore power?
Short answer is Yes.  Unless there is something non-standard about your rig.  You should have a converter in the rig that provides 12volt power to the house as well as charging the house batteries.  Whether the chassis battery gets charged from shore power as well is a little less certain, some rigs do some do not.
2017 Phoenix Cruiser 2552 on Ford E-450
2017 Jeep Cherokee towed behind

wackymac

  • ---
  • Posts: 473
Re: Heating questions?
« Reply #6 on: December 16, 2017, 05:43:37 PM »
You should not need to run the "truck engine" to charge the batteries unless you are driving.  Use your generator instead.
2002 Fleetwood Fiesta 31H, 2001 F53 Ford chassis
2002 Toyota Tacoma Xtra Cab 2wd
2 cats:
11 (as of 04-05-18) year old red mackerel tabby with white, male, 24#,  leash trained--Rusty
10 year old black and white DLH, 15#, female--Penny
Home base---Ocala, FL

 

Hosted by Over The Network