Question 1

Which is better, Southwire 18/5 Thermostat Wire 50ft or Honeywell THP9045A1098 Wire Kit?

Accepted Answer

Both products scored 8.8/10 in our testing — it's a tie. Choose based on which features matter most to you.

Question 2

Is the Southwire 18/5 Thermostat Wire 50ft worth it over the Honeywell THP9045A1098 Wire Kit?

Accepted Answer

The Southwire 18/5 Thermostat Wire 50ft scores 8.8/10 while the Honeywell THP9045A1098 Wire Kit scores 8.8/10. The Southwire 18/5 Thermostat Wire 50ft is our "Best Overall" pick in the Best Thermostat Wire Kits 2026 category.

Southwire 18/5 Thermostat Wire 50ft vs Honeywell THP9045A1098 Wire Kit: Which to Buy?