Every year, thousands of house fires start because of space heaters. Many of these fires are not caused by user error. They happen because the heater itself was poorly designed, badly manufactured, or came with missing warning labels. When that happens, the law gives you a path to recover your losses. But you need to understand how product liability works in these cases, because the legal system is not going to hand you money just because you suffered.

Product liability law in the United States holds manufacturers, distributors, and sellers responsible for putting dangerous products into the hands of consumers. For space heaters, the most common claims fall into three categories: design defects, manufacturing defects, and failure to warn. Each one has a different standard of proof, and each one puts the burden on you to show that the heater was unreasonably dangerous when it left the factory.

A design defect means the product was built according to plan, but the plan itself was unsafe. For example, a space heater that places the heating element too close to flammable plastic housing, or that lacks an automatic shutoff switch when it tips over. These are decisions made by engineers and executives in a boardroom. If those decisions created a foreseeable risk of fire, and a safer alternative design existed that would not have cost a fortune, the company can be held liable. You do not need to prove the company acted recklessly. You only need to prove the design made the product unreasonably dangerous for normal use.

A manufacturing defect is different. This happens when the heater that burned your house down was not built the way the manufacturer intended. Maybe a wire was crimped wrong, a thermostat was installed out of spec, or a screw was missing. These are one-off problems that slip through quality control. The law says the manufacturer is strictly liable for these defects. Strict liability means you do not have to prove the company was negligent—no need to show they knew about the problem or failed to inspect properly. You just need to show the product was defective when it left their control and that the defect caused your fire.

Failure to warn is the third angle. Even if a space heater is perfectly designed and built, the manufacturer must tell you about dangers you cannot reasonably see. For example, a heater that gets extremely hot on the outer casing might need a warning label saying “Keep at least three feet from curtains.” If the label is missing or the instructions are vague, and someone places the heater too close to a sofa, the manufacturer can be on the hook for the resulting fire. This is a common claim in cases where a product is used in a foreseeable, but slightly careless, way.

Now, the practical part. If your house burns because of a space heater, what do you actually do? First, preserve the evidence. Do not throw the heater away. Do not let the fire department or insurance company destroy it. The physical product is the number one piece of evidence. Second, get the model number, serial number, and date code. Check for recalls. The Consumer Product Safety Commission (CPSC) maintains a database of recalled products. If your heater was recalled and you were never notified, that strengthens your case enormously.

You will want to hire a lawyer who handles product liability cases, not a general personal injury attorney. Product liability is a specialized field. The lawyer will need to bring in an engineer to examine the heater and determine what failed. That expert will also need to show alternatives existed. For a design defect claim, the expert has to explain what a safer design would look like and why it would not have added much cost. For a manufacturing defect, the expert can use X-rays, scanning electron microscopes, and destructive testing to find the flaw.

One major hurdle: contributory or comparative negligence. If you used the heater in a way the instructions clearly warned against, or if you left it on overnight despite a warning not to do that, your own fault can reduce or even eliminate your recovery. In some states, if you are more than 50% at fault, you get nothing. That is why failure-to-warn claims are important—if the warnings were inadequate, your “negligence” might not count because you were never properly informed.

Insurance companies love to blame the homeowner. They will say you plugged the heater into an extension cord, or you covered it with a blanket, or you never cleaned the dust off. Your job, with your lawyer, is to show that even if you made a mistake, the product should have protected you from it. A tip-over switch should still work even if the heater is on a rug. An overheat sensor should cut power even if dust is present. If the manufacturer cut corners on safety features, they bear the responsibility.

The damages you can recover go beyond just the destroyed house. You can claim the value of all personal property lost, the cost of temporary housing, and emotional distress if you or a family member were injured. In rare cases where the manufacturer knew about the defect and sold the heater anyway, you might get punitive damages—money meant to punish the company and deter others. These are not easy to win, but they are possible.

The bottom line: a space heater that starts a fire because of a defect is not a random accident. It is a predictable result of cutting corners. The law is on your side, but only if you act quickly, preserve the evidence, and hire someone who knows how to prove the defect existed before you ever plugged it in.