If your house is older, you may not be able to support multiple induction burners outright as your wiring from the power company may be insufficient. You can check by looking for a main circuit breaker in your panel. If it is only 100A, you probably cannot support induction ranges. You would have to request new wiring from your power company, then also rewire a significant amount of your in home electrical. You can still buy the desktop singular ones though.