Cinderella Incinerating Toilet Installation Details - CHIMNEY INSTALL Part 2
Photo Guide to Details of Steps to Install the Cinderella Toilet

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Here we provide photos and notes giving details of a successful installation of the Cinderella Incinerating Toilet. This is article #6 of seven articles in this series. The full list of seven is included in the Recommended Articles list at the end of this page.

This article series describes the brands, properties, installation, and maintenance of incinerating toilets - a waterless system for onsite waste disposal where a septic system cannot be installed. Incinerating toilets use electricity or gas to produce heat which literally incinerates the waste.

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

Cinderella Incinerating Toilet Installation Details

Above: the cover of the instruction manual for the Cinderella Comfort incinerating toilet.

The manufacturer provides excellent instruction manuals for the installation of each Cinderella incinerating toilet model. Be sure to obtain and read and follow those instructions. Failure to do so could mean that your installation doesn't work properly or worse, that the installation is unsafe. Always start by reading the instructions.

[Click to enlarge any image]

In this article series we provide detailed photos and notes that expand on the manufacturer's instructions to show how we implemented them in a specific case. These added "how to" details explain and illustrate exact details of every step in the installation of an incinerating toilet.

We include a few tricks of the trade that solve special problems such as how to mount a flat vent cover on a curved log exterior wall, and how to set up chimney sections to measure the correct lengths to which you should cut the material.

We also include details on adding additional chimney/vent bracing at the roof edge to solve what in our OPINION was a very wobbly and potentially problematic exterior vent installation.

Article Series Contents

CINDERELLA INCINERATING TOILET INSTALLATION - home

Please visit the above link to this topic's home page for a complete list of all the steps included in the installation of a Cinderella incinerating toilet.

For ease of page loading and reading we have divided the entire incinerating toilet installation procedure into a series of web pages listed there.

If you prefer to have all of this information together in a single printable document simply download CINDERELLA TOILET INSTALLATION INSTRUCTIONS - ALL [PDF]

Article Contents

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Check Chimney Clearance from Roof Edge

When measuring and setting the clearance between the last vertical section of your Cinderella chimney/vent and the roof edge you could make either of two measurements.

Above we measured the distance from the face of the fascia board, because we'll need to know this when cutting the threaded chimney bracket rod to length.

An added reason for a generous clearance distance between fascia and chimney (8" in this case) is to allow for future installation of roof edge gutters should the building owner decide to add that feature.

Because a proper roof shingle installation will include a drip edge and shingle extension a bit past even the edge of the drip edge, the clearance distance from that edge to the chimney side will be a bit less - shown below.

Below: we set the remaining vertical chimney height to give adequate clearance above the roof surface and also (this is important) to meet the recommended chimney height given in the Cinderella toilet instructions - necessary for proper exhaust draft.

For a fossil-fuel venting chimney, chimney height requirements are described

at CHIMNEY HEIGHT & CLEARANCE CODE

We might also want to avoid any effect on the Cinderella vent performance that might be caused by winds, wind turbulence, wind downdrafts due to a chimney top too close to the roof surface, so respecting the two-foot rule described in the article above might be useful even for the simpler vent for an incinerating toilet.

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Set Chimney Top To Proper Rooftop Clearance Height

Below: our measurement shows that the top of the chimney's outlet (with top cap installed) will be two feet above a horizontal line (or a level pine board) drawn from the chimney top.

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Install Top Chimney Section & Set Chimney Perfectly Vertical (Plumb)

Watch out: before making final measurements of chimney height or horizontal distance from the fascia (to cut and install the threaded-rod chimney support bracket) be sure that your chimney is perfectly plumb or vertical by measuring it with a level, on two sides.

The first is shown below as I set the level along the chimney side parallel to the building.

A second plumb measurement will be made on the side of the chimney facing away from (or towards) the building so that we know the chimney is set plumb in both directions.

Our photos below show us adjusting the chimney position to dead plumb as we make final adjustments to the threaded rod chimney brace that holds the chimney off of the building's fascia board and roof.

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With the Cinderella chimney's top section cut to length and dead plumb we can measure our roof edge clearance. We need this distance to cut the threaded rod to proper length for our top chimney brace / bracket - described in detail next.

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Confirm Adequate Chimney Vertical Height to Meet Cinderella's Requirements

When measuring the vertical chimney height for the Cinderella toilet, we measure from the center line of the horizontal outlet tee (photo above) to the top of the chimney outlet (photo below).

Maximum Cinderella Chimney Vent Height & Clearances

Maximum total vertical height of the chimney in a straight run (no bends after the base tee connection) = 18 ft. (5.5m)
Maximum total vertical chimney height where a single 45 degree or 30 degree bend has been included = 15 ft. (4.5m).

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Please continue reading the next article in this series on installing a Cinderella incinerating toilet - the link is just below.

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Continue reading at CINDERELLA INCINERATING TOILET INSTALLATION - FINAL STEPS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

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Cinderella Incinerating Toilet Installation Details - CHIMNEY INSTALL Part 2
Photo Guide to Details of Steps to Install the Cinderella Toilet