We may earn a commission when you buy through our links. Rankings are formula-based and never paid for. As an Amazon Associate I earn from qualifying purchases. Disclosure

Camplux RP199iB vs Camplux RT199iB

Two of the gas tankless water heaters in our best gas tankless water heaters comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.

Affiliate disclosure: We earn a commission if you buy through links on this page, at no extra cost to you. It never affects our rankings, which come from the published scoring formula. As an Amazon Associate I earn from qualifying purchases. Learn more.

#1 of 40 in Gas Tankless Water Heaters

Camplux RP199iB

8.7/10

Best for: Official UEF 0.98, maximum 5.8 GPM, minimum activation 0.6 GPM, ENERGY STAR connected-capable

Check price at Amazon
#2 of 40 in Gas Tankless Water Heaters

Camplux RT199iB

8.7/10

Best for: Official UEF 0.98, maximum 5.8 GPM, minimum activation 0.6 GPM, ENERGY STAR connected-capable

Check price at Amazon

Spec-by-spec comparison

Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.

SpecCamplux RP199iBCamplux RT199iBWeight
Uniform energy factorOfficial ENERGY STAR uniform energy factor. Higher means more hot water delivered per unit of fuel. Missing values take the category minimum. 0.98 0.98 34%
Maximum flowOfficial ENERGY STAR maximum gallons per minute. This is a lab rating, not a guarantee at your incoming water temperature. Missing values take the category minimum. 5.8 GPM 5.8 GPM 32%
Minimum activation flowOfficial ENERGY STAR minimum gallons per minute needed to start the heater. Lower is better for low-flow fixtures. Missing values take the category minimum (the highest minimum flow in the set). 0.6 GPM 0.6 GPM 18%
Connected capableYes when the official ENERGY STAR record lists the model as connected-capable. Unstated counts as no. Yes Yes 16%
Uniform energy factor (ENERGY STAR UEF)0.980.98info
Maximum flow (ENERGY STAR)5.8 GPM5.8 GPMinfo
Minimum activation flow (ENERGY STAR)0.6 GPM0.6 GPMinfo
Fuel (ENERGY STAR)Natural GasNatural Gasinfo
Vent type (ENERGY STAR)Power Direct VentPower Direct Ventinfo
Input rate (ENERGY STAR)199,000 BTU/h199,000 BTU/hinfo
Annual natural-gas use (ENERGY STAR)171 therms/year171 therms/yearinfo
Maximum GPM per 10,000 BTU/h (computed)0.29 GPM per 10,000 BTU/h, computed as certified maximum GPM ÷ certified input rate0.29 GPM per 10,000 BTU/h, computed as certified maximum GPM ÷ certified input rateinfo
Connected capable (ENERGY STAR)YesYesinfo
Draw pattern (ENERGY STAR)High-UsageHigh-Usageinfo
Recovery efficiency (ENERGY STAR)1%1%info
Dimensions (ENERGY STAR)26.8 × 17.3 × 11 in (H × W × D)26.8 × 17.3 × 11 in (H × W × D)info
Certified model numberRP*199iBRT*199iBinfo
Official brand name on the ENERGY STAR recordJUNSKY, CAMPLUX, GASLAND, ThermoMateJUNSKY, CAMPLUX, GASLAND, ThermoMateinfo
HeatPick score8.7/108.7/10100%

Where each one comes out ahead

Camplux RP199iB

No scored spec where it is strictly ahead; its case rests on the strengths below.

What we like

  • Highest official uniform energy factor in this comparison (0.98)
  • High official maximum flow (5.8 GPM)
  • ENERGY STAR lists this model as connected-capable

Watch out for

  • No additional scored gaps in the official record we used

Camplux RT199iB

No scored spec where it is strictly ahead; its case rests on the strengths below.

What we like

  • Highest official uniform energy factor in this comparison (0.98)
  • High official maximum flow (5.8 GPM)
  • ENERGY STAR lists this model as connected-capable

Watch out for

  • No additional scored gaps in the official record we used

Verdict

The official ENERGY STAR records for the Camplux RT199iB and RP199iB both list a 0.98 UEF, 5.8 GPM maximum flow and 0.6 GPM minimum activation flow, and both mark the models as connected-capable. The official brand name on both records is “JUNSKY, CAMPLUX, GASLAND, ThermoMate.” We display Camplux as the retail name and show that official brand string in the details. We do not infer a hardware difference from the RT and RP letters alone.

Camplux RP199iB on AmazonCamplux RT199iB on Amazon
Spec sources

Related comparisons