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Chalkboard lesson · Betting Slang

What is a heater in gambling?

The short answer

A hot streak — a run of wins in a row, at the tables or on a betting card.

Watch the lesson

The Hangover still of Alan in the casino with the headline "Never leave on a heater" — The Cold Line lesson: what is a heater?Play the Heater video

Betting slang explained

Knowing the language is step one — knowing the true price is the edge. The Cold Line’s signal desk tracks the no-vig fair number and the closing-line value behind terms like this, before the market moves.

In plain English

You keep winning and it feels like you cannot miss. Fun to ride — but a streak is a record of what already happened, not a reason the next bet wins.

What to remember about Heater

The definition

A hot streak — a run of wins in a row, at the tables or on a betting card.

In plain English

You keep winning and it feels like you cannot miss. Fun to ride — but a streak is a record of what already happened, not a reason the next bet wins.

Example in context

Five straight winners at -110 is a heater. Bet six still needs 52.38% to break even (110 ÷ 210) — exactly what it needed before the run.

Check yourself

Term quiz

Check yourself: Heater

0/3 answered

1.A heater is…

2.You hit five straight bets at -110. What does bet six need to break even?

3.In The Hangover, how much does Stu count out after the blackjack run?

Keep learning

Explore the next question before you place a bet.

Put the concept to work

Explore Heater with a concrete research workflow. Build your own number, compare sportsbook prices with a sharp reference, or use Audits to review timestamped book moves beside play-by-play.

Browse the full A–Z betting glossary or read the complete betting guide. The Cold Line also publishes a free year-round sports calendar and an odds board (Free account: delayed odds).