---
title: "Propane conversion service cost"
description: "La Cornue propane conversion service cost — the maker's own published orifice set and procedure, every burner and both oven burners set, a leak check, and a…"
url: "https://la-cornuemiami.support/repair-cost/propane-conversion-service-cost/"
date_modified: "2026-09-03"
Appliance type: "Cooktops and rangetops, Ranges"
---


# La Cornue propane conversion service cost

### Why the whole range, not the burners you use

Because the ones you do not use are where a half-finished conversion hides. We see ranges with the front burners correctly orificed and the plaque burner, the grill and the oven burners still set for the other fuel — which means the range cooks beautifully on two burners and produces soot, smell and slow oven heat everywhere else. Setting every burner, both ovens and the regulator, then leak-testing and writing down what the range is now on, is what the figure covers.

What moves this figure

from $325, and it covers every burner rather than the ones you use

The maker's own parts set, never a universal kit

The range leaves with a written record of its fuel

How many burners

A Grand Palais 180 with a plaque, a grill and two ovens is a different job from a Castel 75.

Which direction

Natural gas to propane and back are both done, and the parts differ.

What was done before

A half-converted range — fronts done, plaque forgotten — is common and adds diagnosis.

The regulator

Frequently the part that was never changed, and the reason every burner runs wrong.

Above 2,000 feet a Château is specified differently, and a CornuFé wants its high-altitude kit above 5,000.

Why the whole range, not the burners you use

Because the ones you do not use are where a half-finished conversion hides. We see ranges with the front burners correctly orificed and the plaque burner, the grill and the oven burners still set for the other fuel — which means the range cooks beautifully on two burners and produces soot, smell and slow oven heat everywhere else. Setting every burner, both ovens and the regulator, then leak-testing and writing down what the range is now on, is what the figure covers.

### The range came with a conversion kit in the box. Can I fit it?

The CornuFé models do ship with one, and La Cornue publishes the procedure. Whether you fit it is a question about gas work rather than about difficulty: every orifice changed is a joint that has to be leak-tested afterwards, and a burner set by eye rather than to specification is the yellow-flame page. If you are qualified to work on gas, the documentation is there. If not, this is the wrong job to learn on.

### How do I know if my range was converted properly?

Look at the flames. Blue with a defined inner cone on every burner, including the plaque and grill burners nobody uses, and no soot on a pan bottom. If any burner runs yellow, or if the range has moved house and nobody mentioned fuel, it is worth a diagnostic — and bring whatever paperwork exists.

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