Published Specifications
Failure to be listed in the NRCan Searchable Product List and the DOE Compliance Certification Management System (CCMS) Database
In Canada and the USA, all air-conditioning and heat-pump systems must be listed in the NRCan/DOE CCMS databases. In fact, it is illegal to import or sell a unit that is not listed. At the time of this publication, March 16, 2026, the Roommate MHP10 and MHP11 are not listed in the NRCan Searchable Product List or in the DOE Compliance Certification Management System (CCMS) Database.
Failure to meet NRCan or DOE Minimum Efficiency Requirements
DesignLine Roommate MHP10 and MHP11 both have a nominal cooling capacity of 12,000 BTU. Under federal law, any 12,000-BTU heat pump in this class must meet a minimum of 13.4 SEER2 in the USA and Canada, or 9.3 CEER in Canada only, to be legally sold, installed, or used. DesignLine does not publish a SEER2 or CEER value because the unit cannot meet the required numbers when tested in a certified lab. This alone renders the units illegal.
Illegal Rating
DesignLine uses the wrong rating metric: EER instead of SEER2 or CEER (Canada only). DesignLine publishes only an EER for cooling and a COP for heating. Neither EER nor COP is a legal rating for this product category. For a heat pump, federal law requires SEER2 and HSPF2 or CEER (Canada only). DesignLine deliberately avoids publishing the correct data because the unit would fail. This alone renders the units illegal.
Illegal Misclassification
By using an EER instead of SEER2 or CEER (Canada only), DesignLine is classifying MHP10 and MHP11 as PTHP, but they do not meet the PTHP definition under the Energy Efficiency Regulations. A lawful PTHP must have a wall sleeve, a separate unencased chassis, and through-the-wall mounting. DesignLine’s MHP10 and MHP11 units lack these traits. Misclassifying the MHP10 and MHP11 as PTHP by using EER is a direct violation of NRCan and DOE rules and is illegal.
Miscalculated Performance Numbers
The heating capacity is fraudulently listed as 11,200 with a 3.5 COP, whereas the manufacturer, Nordica, which also inflates its numbers, publishes only 9,000 BTU at 3.1 and 3.4 COP. Moreover, when calculating Nordica’s numbers, the COPs are 2.84 and 3.10. So, somehow, MHP10 and MHP11 are claimed to have both higher capacity and higher COP at a higher load. Impossible.
Fraudulent and Fake Numbers
The 12,000-BTU capacity they claim, along with the 9.8 EER rating, is fraudulent. When tested in a lab, this unit will not produce 12,000 Btu/h and an EER of 9.8. So, even ignoring the misclassification and wrong ratings, the actual numbers they claim are fake.
Regulatory Violation Summary
DesignLine’s MHP10 and MHP11
These products are illegal to distribute, specify, install, or use in the United States and Canada.
DesignLine’s published efficiency numbers are fabricated, physically impossible, and use illegal EER rating metrics instead of the legally required SEER2 or CEER metrics that have not been legally acceptable since January 1, 2023. The MHP10 and MHP11 fail to meet DOE and NRCan minimum efficiency requirements under every applicable classification.
One Million Dollar Guarantee
We back the statement that the DesignLine MHP10 and MHP11 cannot legally be sold, installed, or used in the United States and Canada with a One Million Dollar Guarantee.
Minimum Efficiency Requirements Not Met
These ratings cannot simply be invented. They must be established through testing in a genuine laboratory under correct DOE and NRCan test procedures. DesignLine has not done this, and the data it publishes makes clear why.
Illegal Rating Metrics Uses
Publishing a retired and inapplicable metric is not a technicality or an oversight. EER was replaced by mandatory legal requirements in 2023. Its continued use constitutes a deliberate misrepresentation of compliance status to customers, dealers, and regulators.
Faking Test Results
Breaking Consumer Protection and Competition Laws
Selling Products That Should Not Be on the Market
Lying to Customers and Regulators
