Continuity through a heat relay is checked using a(n)?

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Continuity means there is a complete conducting path between two points. To verify a heat relay’s ability to carry current, you check how easily current can flow by measuring resistance with a device that can test a closed path. An ohmmeter applies a small test current and displays the resistance; a closed, intact winding or path shows a finite, expected resistance, while a broken path shows very high or infinite resistance. That direct resistance reading is what confirms continuity. A voltmeter only measures voltage, not whether a path exists; an ammeter measures current, which isn’t a direct test of a path’s existence; a multimeter can perform resistance/continuity tests but the typical, specialized tool for this purpose is the ohmmeter. In practice, you’d confirm the coil has continuity (and is within spec) to ensure the relay can energize properly.