---
title: "March 2020-May 2023 – General Concept Plumbing Diagram –  Gas Heated Systems – Zen Bathworks Cedar Hot Tubs (legacy systems)"
description: "[General_Concept_Plumbing_Diagrams_Gas-Zen_Bathworks_Cedar_Hot_Tubs](https://www.zenbathworks.com/wp-content/uploads/2022/11/General_Concept_Plumbing_Diagrams_Gas-Zen_Bathworks_Cedar_Hot_Tubs.pdf)[Download](https://www.zenbathworks.com/wp-content/uploads/2022/11/General_Concept_Plumbing_Diagrams_Gas-Zen_Bathworks_Cedar_Hot_Tubs.pdf)"
url: "https://www.zenbathworks.com/docs/ht-general-concept-plumbing-diagram-gas-heat/"
updated: "2026-06-01"
category: "Hot Tub Resources / Hot Tub Assembly & Installation"
---

# March 2020-May 2023 – General Concept Plumbing Diagram –  Gas Heated Systems – Zen Bathworks Cedar Hot Tubs (legacy systems)

[General_Concept_Plumbing_Diagrams_Gas-Zen_Bathworks_Cedar_Hot_Tubs](https://www.zenbathworks.com/wp-content/uploads/2022/11/General_Concept_Plumbing_Diagrams_Gas-Zen_Bathworks_Cedar_Hot_Tubs.pdf)[Download](https://www.zenbathworks.com/wp-content/uploads/2022/11/General_Concept_Plumbing_Diagrams_Gas-Zen_Bathworks_Cedar_Hot_Tubs.pdf)