Getting your Trinity Audio player ready...

It was the compost that set a Willow Road house in Menlo Park on fire March 6, displacing a family of four for at least a year, investigators concluded.

The fire started in a compost pile lying next to the house and near an attic vent, Fire Chief Harold Schapelhouman said on Wednesday (May 9).

A recent tree trimming cleared the way for more sunlight to hit the pile, accelerating decomposition and creating enough heat to start a blaze, according to the Menlo Park Fire Protection District. The fire entered the house through the vent and possibly a side wall air-conditioning unit.

The fire ruined portions of the home at 52 Willow Road, which had been remodeled six months earlier. No one was hurt, but a family of four, along with two visiting grandparents, are living elsewhere for an indefinite time until repair of the approximately $310,000 in damages wraps up.

Neighbors living next door were temporarily forced out of their own home thanks to smoke damage, the district said. While firefighters focused on protecting the neighbor’s home, which has a “highly flammable” wood-shingled roof, open windows let smoke stream inside, the district reported.

The morning of the fire, neighbors reported hearing a “boom” shortly before 11 a.m. and seeing flames leap from a front corner of the home. Firefighters arrived on the scene about two minutes after the 911 call.

Join the Conversation

9 Comments

  1. Compost piles rarely go over 130 degrees, must be the correct mix of ‘brown and green’ (nitrogen and carbon materials) and only then with adequate moisture (a really good pile will steam when turned, in winter.)

    If it wasn’t moist, one has to ask how often a pile of dry leaves combusts spontaneously in our area.

    A ‘boom’?

    Never heard of a boom from a pile.

    Bordering on the absurd.

    Should report this, it’s a first.

  2. From the link: ” Avoid large piles – no greater than 12 feet high.” They’re clearly talking large agricultural sites and piles.

    http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex10721

    # Monitor your organic material for hotspots – high temperature (76 to 80°C), vents, smoke or burnt smell.
    # Ensure temperature monitoring equipment can reach the centre of the piles.
    # Ensure adequate ventilation and moisture content (above 40%) of pile to release heat.

    Granted, I don’t have experience with piles that large, only locally with many compost piles at a residential level. And NEVER saw one smolder.

  3. “Any thing about hearing “boom” form a compost heap?”

    Not that I’ve seen so far, but in my experience, witness statements are notoriously inaccurate.

  4. never ever considered a residential compost heap going up in flames

    if it’s too dry, it’s just a bunch of leaves

    too damp, no ignition

    just right moisture, it becomes compost (dirt) and ain’t gonna burn

    large farm ops have windrows, etc. that are a different animal altogether (often includes animal products)

Leave a comment