Abstract: A thermal battery system may be provided comprising: a vessel comprising a phase change material and a gas; a heat exchanger configured to transfer heat to and/or from the phase change material; a temperature sensor configured to detect an indication of a temperature of the gas; a pressure sensor configured to detect an indication of a pressure of the gas; and a processor configured to determine a state of charge of the thermal battery system from the indication of the pressure and the indication of the temperature of the gas.

Abstract: A removable drain includes a grill grate including at least one aperture and at least one grill grate first fastener opening configured to receive a first fastener, and a support flange configured to support the grill grate and configured to be coupled to an existing drain, the support flange having a central opening and including a recessed flange extending into the opening from an interior wall for the support flange and on which the grill grate can be accommodated, at least one first support flange fastener opening configured to receive the first fastener, and at least one second support flange fastener opening configured to receive a second fastener, wherein the grill grate is configured to be detachably coupled to the support flange by the first fastener and wherein the support flange is configured to be detachably coupled to an existing drain structure by the second fastener.

Abstract: A removable drain includes a grill grate including at least one aperture and at least one grill grate first fastener opening configured to receive a first fastener, and a support flange configured to support the grill grate and configured to be coupled to an existing drain, the support flange having a central opening and including a recessed flange extending into the opening from an interior wall for the support flange and on which the grill grate can be accommodated, at least one first support flange fastener opening configured to receive the first fastener, and at least one second support flange fastener opening configured to receive a second fastener, wherein the grill grate is configured to be detachably coupled to the support flange by the first fastener and wherein the support flange is configured to be detachably coupled to an existing drain structure by the second fastener.

Abstract: A food treat includes: a stick including a first portion, a second portion, and a coating; the first portion of the stick infused with the coating; and a food product attached to the first portion of the stick, the second portion of the stick configured to be held by a user. A coating system includes: a container; a flavoring solution held by the container; and a stick submerged in the flavoring solution, the flavoring solution including a flavoring oil.