Is a tankless water heater worth installing for a household of four in Oromocto where our hot water runs out mid-shower?

A tankless water heater can absolutely solve your mid-shower cold water problem for a family of four, but you'll need proper sizing and potentially electrical upgrades to make it work effectively in your Oromocto home.

For a household of four with simultaneous hot water demands (multiple showers, dishwasher, laundry), you'll want a whole-house electric tankless unit rated for at least 24-28 kW output. This provides roughly 4-5 gallons per minute of hot water — enough for two showers running simultaneously. Popular models like Stiebel Eltron Tempra or Rheem RTEX series work well in New Brunswick's cold climate where incoming water temperatures drop to 4-6°C in winter.

The electrical reality in Oromocto homes built in the 1970s-1990s (common around CFB Gagetown) is that most have 200-amp service, but a whole-house tankless unit requires 100-125 amps of dedicated capacity. You'll likely need an electrical panel upgrade and possibly service entrance work. A licensed electrical contractor must handle this installation — NB Power requires a wiring permit (1-800-615-0522) and Technical Inspection Services (TIS) must inspect the work (1-888-659-3222).

Cost breakdown for Oromocto area:

• Tankless unit: $1,800-$3,500


• Electrical upgrades: $2,000-$5,000 (panel upgrade, new circuits, possible service upgrade)


• Installation labor: $1,500-$2,500


• Total project: $5,300-$11,000

Compare this to a high-efficiency 60-gallon tank water heater ($1,200-$2,000 installed) that would likely solve your capacity issue for much less upfront cost. Modern tanks heat faster and recover quicker than older units.

Energy savings in New Brunswick are modest — tankless units eliminate standby losses but electric rates here are reasonable (about 12¢/kWh). You might save $150-$300 annually, meaning a 15-20 year payback on the premium cost.

Your best first step is having a licensed electrical contractor assess your panel capacity and provide a quote for the electrical work. Town of Oromocto requires building permits for electrical upgrades — contact their Building Inspection department at (506) 357-4400. If electrical costs are prohibitive, a larger tank water heater might be the practical solution for your family's hot water needs.