To choose the correct storage heater for your room, you will need to know the room’s heat loss and the duration of your Electric Utility’s off-peak period.

As an example, let’s assume that your room has a heat loss of 2 kW (7k BTU/Hr) and your off-peak period has a duration of 8 hours, from 11 p.m. to 7a.m.

Looking at the column below under “8 hours”, the VFMQ40-440 storage heater can meet a maximum maintainable heat loss of 1.8 kW, while the next larger size can meet 2.3 kW, so the VFMQ50-550 is the correct choice to meet your room’s 2.0 kW heat loss.

Choose your region: Minnesota | Nova Scotia | Rural Electric Cooperatives | Ontario

Minnesota Power, USA

1. Maximum Maintainable Heat Loss refers to the maximum heat loss each storage heater can meet based on the length of your utility’s off-peak period.
2. Wire and Breaker sizes should be confirmed based on your local electrical code.
3. If your Electrical Utility offers a mid-peak period as well, please for a customized storage heater selection table.

Nova Scotia, Canada

1. The Nova Scotia Power column assumes the use of the Dimplex control panel and the intelligent use of the additional 4-hour mid-peak standard rate period.
2. When using a manual control strategy, the mid-peak standard rate period is not used for charging and therefore the lower heating capacity must be used.

Rural, Rural Electric Cooperatives

Ontario, Canada

1. Maximum Maintainable Heat Loss refers to the maximum heat loss each storage heater can meet based on the length of Ontario's charging periods.
2. Wire and Breaker sizes should be confirmed based on your local electrical code.
3. The Ontario TOU column assumes the use of the Dimplex control panel and the intelligent use of the additional 6-hour mid-peak standard rate period for only the coldest days.
4. When using a manual control strategy, the mid-peak period is not used for charging and therefore the lower heating capacity must be used.