Signature 100 is AO Smith's Lowe's value electric tier — 6-year tank and parts warranty, sold at Lowe's retail. The volume electric pick for budget-conscious all-electric households.
The Signature 100 lineup
- Signature 100 40G Electric (EJC-40) — 2-3 person households
- Signature 100 50G Electric (EJC-50) — 3-4 person households (volume pick)
- Signature 100 80G Electric (EJC-80) — 4-6 person households or high simultaneous demand
Signature 100 vs upgrading
Signature 100 is the volume value pick. For long-horizon ownership and electrification, Voltex hybrid heat pump pays back upfront premium in 2-3 years through operating savings + IRA tax credit. For higher warranty + brass drain valve, see Signature Premier gas line.
Bottom line
Signature 100 is the right pick for: short-term ownership, rental properties, all-electric households without heat-pump install capability, and budget-tight replacements. For long-horizon owners on electric service, Voltex is the math winner.