LA COSTA 42” Wood Burning Fireplace - Installation Instructions - PN 54139 REV C

Oct 25, 2026

Upload by Rhys

Installation instructions for the LA COSTA 42” wood burning fireplace, covering approved fuel options (wood burning, vented gas log, or vent-free gas log heater with required standards) and essential safety requirements. The manual explains how to keep glass doors fully open or fully closed during operation, outlines safety information and key terminology, and provides an introduction to intended residential installation. It also specifies the required flue pipe system and directs readers to further sections for site selection and clearances.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Contents

Safety Information

Glossary

Introduction

Before You Begin

Selecting Location

Minimum Clearances to Combustible

Installing the Fireplace

Hearth Extension

Outside Air Kit

Gas Line Installation

Vent Free Gas Log Installation

Cold Climate Installations

Chimney Pipe

Penetrating the Roof

Flashing Installation

Storm Collar Installations

Terminations

Finishing the Fireplace

Mantel Clearances

Replacement and Accessory Parts

LA COSTA 42” Wood Burning Fireplace Models: 42EC Circulating (Louvered) I42EC Circulating (Louvered) Fully Insulated 42E Non-Circulating (Smooth Face) I42E Non-Circulating (Smooth Face) Fully Insulated INSTALLATION INSTRUCTIONS SAVE THIS BOOK This book is valuable. In addition to instructing you on how to install your fireplace, it also contains information that will enable you to obtain replacement parts or optional accessory items when needed. Keep it with your other important papers. WARNING: ALWAYS LEAVE GLASS DOORS FULLY OPENED OR FULLY CLOSED WHEN OPERATING THIS FIREPLACE. This Fireplace is approved for use as a Wood Burning Fireplace or for use with a vented gas log approved to ANS Z21.60, Z21.84 or RGA 2- 72 Standards or for use with a vent-free gas log heater approved to ANS Z21.11.2 standard. A DESA hood must be installed when using a vent-free gas log set (See accessories on pg. 11) . DESA INTERNATIONAL 2701 INDUSTRIAL DRIVE P.O. BOX 90024 BOWLING GREEN, KY 42102-9004 [www.desatech.com](www.desatech.com) ICBO ES ER-3507 PN 54139 REV C 3/01 CONTENTS 1. SAFETY INFORMATION --------------------------------------------------------------------------------- PG. 2 2. GLOSSARY --------------------------------------------------------------------------------- PG. 2 3. INTRODUCTION --------------------------------------------------------------------------------- PG. 2 4. BEFORE YOU BEGIN --------------------------------------------------------------------------------- PG. 2 5. SELECTING LOCATION -- ------------------------------------------------------------------------ ------- PG. 2 6. MINIMUM CLEARANCES TO COMBUSTIBLE ---------------------------------------------------------------------------- PG. 3 7. INSTALLING THE FIREPLACE --------------------------------------------------------------------------------- PG. 3 8. HEARTH EXTENSION --------------------------------------------------------------------------------- PG. 4 9. OUTSIDE AIR KIT --------------------------------------------------------------------------------- PG. 4 10. GAS LINE INSTALLATION --------------------------------------------------------------------------------- PG. 4 11. VENT FREE GAS LOG INSTALLATION --------------------------------------------------------------------------------- PG. 5 12. COLD CLIMATE INSTALLATIONS --------------------------------------------------------------------------------- PG. 5 13. CHIMNEY PIPE --------------------------------------------------------------------------------- PG. 6-7 14. PENETRATING THE ROOF --------------------------------------------------------------------------------- PG. 8 15. FLASHING INSTALLATION --------------------------------------------------------------------------------- PG. 9 16. STORM COLLAR INSTALLATIONS --------------------------------------------------------------------------------- PG. 9 17. TERMINATIONS --------------------------------------------------------------------------------- PG. 9 18. FINISHING THE FIREPLACE --------------------------------------------------------------------------------- PG. 10 19. MANTEL CLEARANCES --------------------------------------------------------------------------------- PG. 10 17. REPLACEMENT AND ACCESSORY PARTS --------------------------------------------------------------------------------- PG. 11 1 For more information, [visit www.desatech.com](visit www.desatech.com) WARNING: SAFETY INFORMATION • Do not store or use gasoline or any other flammable vapors or liquids in the vicinity of this or any other appliance. • Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies. • Do not place clothing or other flammable materials on or near the appliance. • NEVER leave children unattended when a fire is burning in the fireplace. • Improper installation, adjustment, alteration, services or maintenance can cause injury, prope

FAQs

What does the manual say about operating the fireplace glass doors?

Always leave the glass doors fully opened or fully closed when operating the fireplace.

What approved options does the fireplace have for fuel use?

The fireplace is approved for wood burning, or for use with a vented gas log approved to specified ANS standards, or with a vent-free gas log heater approved to the listed ANS standard with the required DESA hood.

What flue pipe system does this fireplace system require?

It requires the utilization of DESA 8 inch, double-wall, and snap-lock flue pipe system.

Oct 25, 2026

Upload by Rhys