謝了，我在網上查的也好像是如此（見內），但是沒有明確說有沒有其他危險

不過我實際上可以降低購買baseboard heater 所需的瓦數。

Manufacturer's Recommended Heating Needs

It is always best to slightly oversize when selecting baseboard heaters. There is no loss of efficiency by heating your space with baseboard heaters that are slightly larger than the minimum requirements.

 

For example, a 30-amp circuit can accommodate a baseboard heater rated for 500 square feet or 4,500 watts, but the same heater will be more efficient at heating a smaller room (assuming the circuit size is appropriate). It's also possible to put two or more baseboard heaters on the same electrical circuit as long as their total combined wattage is not higher than the circuit's maximum capacity.

 

Total Area of Room (sq. ft.)	Recommended Heater Rating (watts)	Electrical Circuit Size Needed (240 volts)
100	900	15 amps
150	1350	15 amps
200	1800	15 amps
300	2700	15 amps
400	3600	20 amps
500	4500	30 amps
800	7200	40 amps
1000	9000	50 amps