The ESR6P is ideal for bathrooms and, when allowed, the ESR10P for bedrooms. ESR18P enhances medium size rooms with cost-effective warmth. The thermostat on the ESR18TP lets you easily maintain a convenient “hands-free” temperature all day and night. The ESR30P and ESR30TP quickly fill large rooms with 30,000 BTU’s. The thermostat on the ESR30TP offers you round-the-clock comfort and convenience.