Section Test Page

Winterize Your RV Heater

FAQs

Quick answers about this product.

Answers to common questions about installation, operation and everyday use.

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How do I troubleshoot the E8 error on my RV furnace 35K BTU?

E8 Failure indicates flue blockage protection. Check the air inlet and outlet for any blockages. Remove any obstructions and make sure both openings are clear.

For more troubleshooting guidance, watch our Troubleshooting Video Series.

How do I troubleshoot the E9 error on my RV furnace 35K BTU?

E9 Failure indicates a timed shutdown reminder. Restart the furnace to clear the reminder and resume normal operation. For a step-by-step guide, watch the installation and troubleshooting video below.

For more troubleshooting guidance, watch our Troubleshooting Video Series.

Will this AC operate on a 20-amp breaker?

Yes. However, since this AC does not include a built-in soft-start module, an aftermarket soft-start device may be required to help reduce the startup surge when operating on a 20-amp breaker.

Can I run this AC on a 12V DC battery system or off-grid?

This is a 115V AC unit and cannot be connected directly to a 12V DC battery system. To run the AC off-grid using a battery bank, such as a Goal Zero power station or a lithium battery bank, you will need a heavy-duty power inverter with at least 3,000W of continuous output recommended. You will also need sufficient battery capacity to support the AC's approximately 13A running current.

Can I run this AC with a portable generator?

Yes, but the required generator size depends on whether a soft-start device is A: Yes. However, this AC does not include a built-in soft-start module. Without a soft-start device, we recommend using a generator rated at least 6.5 kW to handle the startup surge. If an aftermarket soft-start device is installed, a smaller generator may be sufficient, depending on the specific generator and setup.

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How do I install my new tankless water heater?

Please check https://www.youtube.com/watch?v=cB5KHpQQiUM&t

If you still can't install successfully, please contact our after-sales team.

How do I drain the water from the RV water heater?

Please check https://www.youtube.com/watch?v=9-I1O9bA5FA

How much operating space does the instashower 8 plus need surrounding the unit to operate safely?

The length and width of the box just needs to be 14*14 inches, the depth needs to be based on the location of the inlet and outlet water pipes and inlet gas pipes installed. The air intake and exhaust of our RV water heater are on the outside of the door frame, and there is no need to supply air inside. As long as the box is 0.6 inches away from the product enclosure frame is fine.

Can the RV hot water heater replace my old one?

Of course! Our RV water heaters are suitable for all RVs. In some cases, you may need our door frame accessories to ensure a proper fit, especially if your existing water heater has different opening sizes. Contact us for more details.

How do I drain the water from the RV water heater?

Please check https://www.youtube.com/watch?v=9-I1O9bA5FA

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What water pressure should I aim for in my RV tankless water heater?

Here is an installation video, please check carefully.

If you still can't install successfully, please contact our after-sales team.

Will this RV water heater replace my original 6/8/10/12 gallon water heater?

This Fogatti RV water heater has a wide range of applications. The opening is 13 x 13 inches and the door is 15 x 15 inches. It can replace Suburban and Atwood's 6 gallons tank water heaters, as well as Girard and Furrion's tankless water heaters.

If you were previously using a 10/12 gallons tank water heater, it will need to be retrofitted with an 18 x 18 door

How do I drain the water from the RV water heater?

Please check https://www.youtube.com/watch?v=9-I1O9bA5FA

If the machine experiences an unexpectedly shutdown or water supply interruption, what needs to be done?

In order to prevent hypoxia, our products have set a 20-minute timer shutdown protection, Please turn off the tap at this timeand the machine will be back to use after a while

What water pressure should I aim for in my RV tankless water heater?

Here is an installation video, please check carefully.

If you still can't install successfully, please contact our after-sales team.

INSTALLATION FIT

Choose the right vent pipe length.

Measure your RV installation depth, then match the result to the corresponding vent pipe option.

How to measure RV furnace vent pipe installation depth
MEASURE & MATCH

How to measure

Insert a ruler into the air intake opening and push it inward until it reaches the outer cover. Record the X-dimension, then match the result below.

Measured X Dimension Select This Option
22-1/4″ – 23-3/8″
60mm
23-1/4″ – 24-7/16″
85mm
24-7/16″ – 25-1/2″
115mm
25-1/2″ – 26-3/4″
145mm
26-3/4″ – 27-7/8″
175mm
Two standard vent pipe sizes are included with the furnace. Choose another option only if your RV requires a different installation depth.