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An expansion tank is fastened to a support using a bracket with a U-shaped cross-section formed by a back and two sidewalls. The edges of the sidewalls each have a notch mating with a weld bead on the tank. Fasteners hold the back of the bracket to the support. First and second hose clamps pass thro

An expansion tank is fastened to a support using a bracket with a U-shaped cross-section formed by a back and two sidewalls. The edges of the sidewalls each have a notch mating with a weld bead on the tank. Fasteners hold the back of the bracket to the support. First and second hose clamps pass through the sidewalls by the back to encircle the tank and clamp it to the edges of the sidewall when the hose clamps are tightened.

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1. An apparatus for holding a fluid expansion tank to a building support, comprising: a single-piece bracket having a flat back and two opposing side walls forming a U shaped cross section with the side walls ending in generally parallel edges, each side wall having at least one slot aligned with th

1. An apparatus for holding a fluid expansion tank to a building support, comprising: a single-piece bracket having a flat back and two opposing side walls forming a U shaped cross section with the side walls ending in generally parallel edges, each side wall having at least one slot aligned with the slot in the other wall, each slot being parallel to the back and immediately adjacent thereto and extending parallel to a longitudinal axis of the back, the back of the bracket having a plurality of fastener holes sized to pass the shaft of a fastener while preventing passage of a head of the fasteners during use; andat least one hose clamp strap and first connector comprising a first strap extending through and along a straight line between the at least one aligned slots in each side wall, the first strap having a length sufficient to encircle the tank during use. 2. The apparatus of claim 1, wherein each side wall edge has an aligned notch therein sized to receive a weld bead on said tank and abut one edge of that bead during use, the notch being located so it is between the first and second straps during use. 3. The apparatus of claim 2, wherein the at least one slot comprises at least a first and second slot in each sidewall aligned with a first and second slot in the opposing sidewall, each first and second slot in each sidewall being spaced apart a distance D; and a second hose clamp strap and a second connector with the second strap extending through the second set of aligned slots, the second strap having a length sufficient to encircle the tank during use. 4. The apparatus of claim 3, further comprising a bottom support extending from a lower end of the bracket a distance sufficient to engage a bottom of the tank during use. 5. The apparatus of claim 4, wherein the bottom support comprises a portion of a back of the bracket bent outward. 6. The apparatus of claim 5, further comprising a threaded fastener extending between the sidewalls below the bottom support and adjacent thereto in order to limit downward movement of the bottom support during use. 7. The apparatus of claim 4, wherein the bottom support comprises an elongated member fastened to the sidewalls by threaded fasteners. 8. The apparatus of claim 3, wherein the distance D is a about 2-3 inches and further comprising a notch that is less than about one-quarter of an inch deep. 9. The apparatus of claim 3, wherein the slots have a length about twice the width of the strap passing therethrough and a width less than about ten times a thickness of the strap passing therethrough. 10. The apparatus of claim 2, wherein the side walls have a plurality of parallel, aligned slots therein contained completely within the sidewalls. 11. The apparatus of claim 2, wherein the back is longer than the side walls. 12. The apparatus of claim 2, further comprising a fluid expansion tank having a cylindrical tank sidewall having a diameter of about 4-15 inches with a welded bead encircling the tank sidewall, the bead fitting in the notch and the hose clamps encircling the tank sidewall and clamping the tank against the edges of the two sidewalls. 13. The apparatus of claim 3, further comprising a fluid expansion tank having a diameter of about 8-13 inches with a flexible diaphragm dividing the tank into compartments, the tank having a cylindrical tank sidewall with a welded bead encircling the tank sidewall, the bead fitting in the notch and the hose clamps encircling the tank sidewall and clamping the tank against the edges of the two sidewalls, and wherein the sidewalls are about two inches apart. 14. A kit for holding a fluid expansion tank against a building support, comprising: a single-piece bracket having a back and two opposing side walls forming a U shaped cross section, the side walls having first and second sets of aligned slots parallel to the back and immediately adjacent thereto, one slot of each set being on separate longitudinal axes parallel to each other, the first and second set of slots spaced apart from each other a distance D measured relative to a longitudinal axis of the back, one slot from each set of slots being coaxial with an axis that is parallel to the longitudinal axis, the back of the bracket having a plurality of fastener holes sized to pass the shaft of a fastener while preventing passage of a head of the fasteners during use;a first hose clamp strap and first connector with the first strap sized and configured to extend through the first set of aligned slots, the first strap having a length sufficient to encircle the tank and pass through the first two aligned slots during use; anda second hose clamp strap and second connector with the second strap extending through the second set of aligned slots and between the side walls along a straight line, the second strap having a length sufficient to encircle the tank and pass through the second two aligned slots during use. 15. The apparatus of claim 14, wherein each side wall edge has an edge having an aligned notch therein sized to receive a weld bead on said tank and abut one edge of that bead during use, the notch being located within the distance D as measured along the longitudinal axis. 16. The apparatus of claim 15, wherein the distance D is a few inches and the notch is less than about one-quarter of an inch deep. 17. The apparatus of claim 15, further comprising a bottom support extending outward from the bracket and extending outward beyond the sidewalls a distance to engage a bottom of the tank during use. 18. The apparatus of claim 15, wherein the side walls have a plurality of parallel, aligned slots therein contained completely within the sidewalls. 19. The apparatus of claim 15, wherein the back is longer than the side walls. 20. The apparatus of claim 15, further comprising a fluid expansion tank having a diameter of about 4-15 inches with a welded bead encircling the tank, the bead fitting in the notch and the hose clamps encircling the tank and clamping the tank against the edges of the two sidewalls. 21. The apparatus of claim 15, further comprising a fluid expansion tank with a flexible diaphragm dividing the tank into compartments, the tank having a cylindrical tank sidewall with a welded bead encircling the tank sidewall, the bead fitting in the notch and the hose clamps encircling the tank sidewall and clamping the tank sidewall against the edges of the two bracket sidewalls. 22. A method for holding a fluid expansion tank against a support, comprising: fastening a bracket to the support, the bracket having a back and two opposing side walls forming a U shaped cross section, the side walls having first and second sets of aligned slots immediately adjacent the back and extending parallel to a longitudinal axis through a center of the back, the first and second set of slots spaced apart from each other a distance D along the longitudinal axis, the back of the bracket having a plurality of fastener holes with the shaft of a plurality of fasteners passing through different ones of a plurality of said holes to fasten the bracket to the support;placing the tank against the side walls;encircling the tank with a first hose clamp strap having a first connector with the first strap extending through the first set of aligned slots and along a straight line between the side walls and tightening the first strap with the first connector to pull the tank against the bracket sidewalls; andencircling the tank with a second hose clamp strap having and second connector with the second hose extending through the second set of aligned slots and tightening the second strap with the second connector to pull the tank against the bracket sidewalls. 23. The method of claim 22, wherein the tank has a weld bead on a sidewall of the tank with the weld bead being located in a notch formed in an edge of each sidewall, the notches being further located between the first and second straps. 24. The method of claim 23, wherein the tank has a diameter of about 4-13 inches.