# Cozy Batch Box Rocket Mass Heater

**URL:** https://forums.firespeaking.com/t/cozy-batch-box-rocket-mass-heater/338
**Category:** Masonry Heater Projects
**Tags:** batch-box, rocket-mass-heater
**Created:** [February 2, 2026, 11:21pm UTC](https://forums.firespeaking.com/t/cozy-batch-box-rocket-mass-heater/338 "2026-02-02T23:21:45Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![max](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.firespeaking.com/max/32/5_2.png) [@max](https://forums.firespeaking.com/u/max)
#### Post date: [February 2, 2026, 11:21pm UTC](https://forums.firespeaking.com/t/cozy-batch-box-rocket-mass-heater/338/1 "2026-02-02T23:21:45Z")

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Here are some photos sent to us by repeat customer, Daniel Ray of [SpiritWood Natural Building](https://www.spiritwoodnaturalbuilding.com/).  
This project uses the [K402 Firebox Door](https://www.firespeaking.com/product/k402-firebox-door/).

 ![Spirit Wood Cozy Bench Batch Box Heater 2](https://canada1.discourse-cdn.com/flex035/uploads/firespeaking/original/1X/57b6ff41fe5cda9c0f7d3f96505ed3b1691006e9.jpeg)

 ![Spirit Wood Cozy Bench Batch Box Heater](https://canada1.discourse-cdn.com/flex035/uploads/firespeaking/original/1X/41efd19a1fa69c4444d960f87f70632a769f0eb9.jpeg)

Congrats Dan (@spiritwoodnb)!