Uploaded March 2026 | Updated September 2026, 7 hours ago
If you want to know how to heat your RV underbelly and you’re worried about freezing pipes during winter camping, I'm sure you know the struggle of keeping your rig’s plumbing safe.
In this video, I’m sharing a "better solution" for keeping things warm by showing you exactly how to heat your RV underbelly using an HCalory Diesel Heater and proper fittings.
I decided to build a custom, reliable setup. I moved away from the standard port that came with the unit and upgraded to a RV bay port for a cleaner, more professional looking install.
Link to the heater in our Amazon Store -- 👉 amazon.com/dp/B0FH9ZPMHP?&linkCode=sl2&tag=rvwaggintai05-20&linkId=8f606905a678a0a3e398a32ad7e0dd2e&language=en_US&ref_=as_li_ss_tl
I’ll walk you through how I used a 4" dryer vent hose and a specific adapter to bridge the gap, securely mounting the RV bay port directly into the belly of the rig. This setup should allow the heat from the HCalory unit is pumped exactly where it's needed most—protecting your tanks and lines from the deep freeze.
In this video, we cover:
Why I replaced the port that came with the heater for a dedicated RV bay port.
Adapting the airflow using a 4" dryer vent hose and custom adapter.
Mounting the port into the RV underbelly for maximum efficiency.
This DIY modification is perfect for four-season RVers who need a high-output, reliable heating solution that goes beyond the standard furnace.
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Thank you for watching! 😊 If you enjoyed this video🛎️, don’t forget to like👍, subscribe 🌟, and ring the 🛎️ so you're notified when we post videos. Please be sure to leave us a comment. We love hearing from you🥰.
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***RV Waggin Tails Disclaimer: Our YouTube channel, Website, Facebook, Instagram, and TikTok pages are only for entertainment. We are not RV, Automotive, Travel, Financial, or Pet experts, nor claim to be. We only share our opinions, experiences, and what has worked or not worked for us with our current gear and locations. This video may contain affiliate links. If you use these links to buy something RV Waggin Tails earns a small commission at no additional cost to you, but helps us keep providing the content we love to share. Thank you! ***
00:00 Intro
02:18 The new pipe
03:50 Fitting the adapter
06:10 Crawling under
07:01 Mounting direction
09:00 More holes
11:20 Final alignment
16:15 Lookin' Good
17:50 Summary
**********************************************************************************
If you want to know how to heat your RV underbelly and you’re worried about freezing pipes during winter camping, I'm sure you know the struggle of keeping your rig’s plumbing safe.
In this video, I’m sharing a "better solution" for keeping things warm by showing you exactly how to heat your RV underbelly using an HCalory Diesel Heater and proper fittings.
I decided to build a custom, reliable setup. I moved away from the standard port that came with the unit and upgraded to a RV bay port for a cleaner, more professional looking install.
Link to the heater in our Amazon Store -- 👉 amazon.com/dp/B0FH9ZPMHP?&linkCode=sl2&tag=rvwaggintai05-20&linkId=8f606905a678a0a3e398a32ad7e0dd2e&language=en_US&ref_=as_li_ss_tl
I’ll walk you through how I used a 4" dryer vent hose and a specific adapter to bridge the gap, securely mounting the RV bay port directly into the belly of the rig. This setup should allow the heat from the HCalory unit is pumped exactly where it's needed most—protecting your tanks and lines from the deep freeze.
In this video, we cover:
Why I replaced the port that came with the heater for a dedicated RV bay port.
Adapting the airflow using a 4" dryer vent hose and custom adapter.
Mounting the port into the RV underbelly for maximum efficiency.
This DIY modification is perfect for four-season RVers who need a high-output, reliable heating solution that goes beyond the standard furnace.
**********************************************************************************
Thank you for watching! 😊 If you enjoyed this video🛎️, don’t forget to like👍, subscribe 🌟, and ring the 🛎️ so you're notified when we post videos. Please be sure to leave us a comment. We love hearing from you🥰.
Join Us As We Embark On New Adventures! Subscribe to our channel for free! 👉 youtube.com/@RVWagginTails
Links:⤵️
🔗Pillar
pillar.io/rv-waggin-tails
🔗Website
rvwaggintails.com
🔗YouTube
youtube.com/@RVWagginTails
facebook.com/people/RV-Waggin-Tails/100068917315684
instagram.com/rvwaggintails
🔗TikTok
tiktok.com/@rvwaggintails
Ways to Support Us: 🫶
🛒RVWagginTails Amazon Store:
amazon.com/shop/rvwaggintails
🛒RVWagginTails Merch Store:
rvwaggintails.com/store
☕RVWagginTails:
buymeacoffee.com/rvwaggintails
Affiliate Links: Products we love to use.🤝
🐅RED-TIGER DASHCAM:
redtigercam.com/?ref=rvwaggintails
PROMO CODE: RVWAGGINTAILS to save 18% on your purchase at Checkout!
📷Haloview Byte Tango BT7 TPMS System:
haloview.com/products/byte-tango-camera-tpms-system.html?acc=745 PROMO CODE: RVWAGGINTAILS to save 5% on your purchase at Checkout!
☀️Solar3A Plus 1080P Rechargeable Wireless Backup Camera with Dual Channels Support
auto-vox.com/collections/backup-camera
PROMO CODE: RVWAGGIN1 to save $20.00 on your purchase at Checkout!
***RV Waggin Tails Disclaimer: Our YouTube channel, Website, Facebook, Instagram, and TikTok pages are only for entertainment. We are not RV, Automotive, Travel, Financial, or Pet experts, nor claim to be. We only share our opinions, experiences, and what has worked or not worked for us with our current gear and locations. This video may contain affiliate links. If you use these links to buy something RV Waggin Tails earns a small commission at no additional cost to you, but helps us keep providing the content we love to share. Thank you! ***
00:00 Intro
02:18 The new pipe
03:50 Fitting the adapter
06:10 Crawling under
07:01 Mounting direction
09:00 More holes
11:20 Final alignment
16:15 Lookin' Good
17:50 Summary
**********************************************************************************
