Table of Contents

1 Listing and Code Approvals

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A. Appliance Certification. . . . . . . . . . . . . . . . . . . . . . . . . 4

B. Glass Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 4

C. BTU Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

D. High Altitude Installations . . . . . . . . . . . . . . . . . . . . . . 4

E. Non-Combustible Materials . . . . . . . . . . . . . . . . . . . . . 4

F. Combustible Materials. . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Getting Started

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A. Design and Installation Considerations . . . . . . . . . . . . 5

B. Negative Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

C. Tools and Supplies Needed. . . . . . . . . . . . . . . . . . . . . 7

D. Inspect the Appliance and Components . . . . . . . . . . . 7

3 Framing and Clearances

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A. Select Appliance Location . . . . . . . . . . . . . . . . . . . . . . 8

B. Construct the Appliance Chase . . . . . . . . . . . . . . . . . . 9

C. Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

D. Mantel Projections. . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Termination Locations

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A. Vent Termination Minimum Clearances . . . . . . . . . . . 12

5 Vent Information and Diagrams

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A. Vent Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 B. Vent System Configuration . . . . . . . . . . . . . . . . . . . . 13

6 Vent Clearances and Framing

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A. Pipe Clearances to Combustibles . . . . . . . . . . . . . . . 15 B. Wall Penetration Framing . . . . . . . . . . . . . . . . . . . . . 15 C. Vertical Penetration Framing . . . . . . . . . . . . . . . . . . . 15

7 Appliance Preparation

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A. Installing Outside Air Kit Damper Assembly . . . . . . . 16 B. Gas and Electrical Connections . . . . . . . . . . . . . . . . 17 C. Securing and Leveling Appliance . . . . . . . . . . . . . . . 17

8 Installing Vent Pipe

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A. Assemble Vent Sections . . . . . . . . . . . . . . . . . . . . . . 18 B. Attach Vent to Firebox Assembly . . . . . . . . . . . . . . . 18 C. Securing Vent Sections . . . . . . . . . . . . . . . . . . . . . . . 18

9 Gas Information

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A. Fuel Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

B. Gas Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

C. Gas Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

D. High Altitude Installations . . . . . . . . . . . . . . . . . . . . . 20

10 Electrical Information

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A. Recommendation for Wire. . . . . . . . . . . . . . . . . . . . . 21 B. Connecting to the Appliance . . . . . . . . . . . . . . . . . . . 21 C. Intellifire Ignition System Wiring . . . . . . . . . . . . . . . . 21 D. Standing Pilot Ignition System Wiring . . . . . . . . . . . . 22 E. Junction Box Installation . . . . . . . . . . . . . . . . . . . . . . 23 F. Wall Switch Installation for Fan (Optional). . . . . . . . . 23

11 Finishing

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A. Mantel Projections. . . . . . . . . . . . . . . . . . . . . . . . . . . 24 B. Facing Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

12 Appliance Setup

25

A. Remove the Shipping Materials. . . . . . . . . . . . . . . . . 25

E. Clean the Appliance. . . . . . . . . . . . . . . . . . . . . . . . . . 25

B. Remove the Clean Face Components . . . . . . . . . . . 25

C. Remove Glass Assembly. . . . . . . . . . . . . . . . . . . . . . 25

D. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

F. Lava Rock, Vermiculite, Rockwool Placement . . . . . 25

G. Replace Glass Assembly. . . . . . . . . . . . . . . . . . . . . . 26

H. Install Clean Face Components . . . . . . . . . . . . . . . . 26

I. Air Shutter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

13 Operating Instructions

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A. Before Lighting Appliance . . . . . . . . . . . . . . . . . . . . . 29 B. Check Appliance Draft. . . . . . . . . . . . . . . . . . . . . . . . 30 C. Lighting the Appliance . . . . . . . . . . . . . . . . . . . . . . . . 31 D. After the Appliance is Lit . . . . . . . . . . . . . . . . . . . . . . 33 E. Frequently Asked Questions . . . . . . . . . . . . . . . . . . . 33

14 Troubleshooting

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A. Standing Pilot Ignition System. . . . . . . . . . . . . . . . . . 34 B. Intellifire Ignition System . . . . . . . . . . . . . . . . . . . . . . 36

15

Maintaining and Servicing the Appliance

38

16

Reference Materials

40

A. Appliance Dimension Diagram . . . . . . . . . . . . . . . . . 40

B. Service Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

C. Optional Components . . . . . . . . . . . . . . . . . . . . . . . . 58

D. Limited Lifetime Warranty . . . . . . . . . . . . . . . . . . . . . 67

E. Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Note: An arrow (¨) found in the text signifies change in content.

Heatilator • Novus BV-Mesh • 4031-553 Rev F • 11/07

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Heatiator NB4236MI, NB4842MI, NB3933MI, NB3630MI owner manual Table of Contents
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NB3933M, NB3630M, NB3630MI, NB3933MI, NB4236M specifications

The Heatiator series of gas fireplaces, including the models NB4236MI, NB4842MI, NB3933M, NB4236M, and NB3933MI, epitomizes modern heating technology with a focus on efficiency, design, and user comfort. These models are engineered to provide warmth while enhancing the aesthetic appeal of any living space.

One of the standout features of the Heatiator series is its advanced combustion technology. The fireplaces are designed to maximize heat output while minimizing emissions. This is achieved through high-quality burners that ensure a clean and efficient flame, allowing users to enjoy the ambient glow without compromise. The models boast impressive thermal efficiencies, meaning they convert a high percentage of the fuel consumed into usable heat, which is an essential factor for eco-conscious consumers.

Design flexibility is another key characteristic of the Heatiator fireplaces. The models in this series come in various sizes and styles, offering options that can blend seamlessly into any decor. Whether you prefer a traditional look or a more contemporary aesthetic, there’s a model to suit your taste. The large viewing areas provided by the glass front panels offer an unobstructed view of the flame, adding a cozy ambiance to your home.

The Heatiator NB4236MI and NB4842MI models feature innovative multi-function remote controls, giving users the convenience of adjusting settings from anywhere in the room. This built-in technology not only enhances user experience but also contributes to energy savings by allowing precise control over the fireplace's operation.

Safety is also a priority with the Heatiator lineup. Equipped with features such as an automatic shut-off system and tempered glass fronts, users can enjoy peace of mind knowing that safety is paramount.

In terms of customization, these models offer various finishes and log options, allowing homeowners to personalize their fireplaces to match their style and preferences.

Overall, the Heatiator NB4236MI, NB4842MI, NB3933M, NB4236M, and NB3933MI represent a perfect blend of technology, safety, and design sophistication, making them an excellent choice for anyone looking to add a reliable and attractive heating solution to their home. Whether for supplemental heat or a primary heating source, these fireplaces are built to deliver exceptional performance in any setting.
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